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Qingdao Jade New Material Technology CO.,Ltd

■POLYMER ADDITIVES JADEWIN UV P CHEMICAL COMPONENT COMPONENT (2'-Hydroxy-5mg-methylphenyl) benzotriazole CAS 2440-22-4 Molecular C13H11N3O M.W 225 SPECIFICATION AND PHYSICAL PROPERTIES

UV ABSORBER UVP

Cas:2440-22-4

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

(2'-Hydroxy-5mg-methylphenyl) benzotriazole

Cas:2440-22-4

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Jinan Finer Chemical Co., Ltd

Product description: Product name Ultraviolet Absorbent UV-P CAS number 2440-22-4 Assay ≥99% Appearance Yellowish powder Capacity 300mt/year Application UV absorber for polye

Ultraviolet Absorbent UV-P

Cas:2440-22-4

Min.Order:100 Gram

FOB Price: $12.0

Type:Lab/Research institutions

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Wuhan Fortuna Chemical Co.,Ltd

Manufacture supply Drometrizole Cas 2440-22-4 with high quality Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/Feed addit

Manufacture supply Drometrizole Cas 2440-22-4 with high quality

Cas:2440-22-4

Min.Order:10 Kilogram

FOB Price: $10.0

Type:Trading Company

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Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply 2-(2H-benzotriazol-2-yl)-p-cresol

Cas:2440-22-4

Min.Order:1

Negotiable

Type:Other

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Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Factory Price Anti UV Drometrizole 2440-22-4 Manufacturer

Cas:2440-22-4

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product s

Ultraviolet Absorbent UV-P Manufacturer/High quality/Best price/In stock

Cas:2440-22-4

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Hebei yanxi chemical co.,LTD.

hebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm

Ultraviolet Absorbent UV-P 2440-22-4

Cas:2440-22-4

Min.Order:1 Metric Ton

FOB Price: $1.0 / 3.0

Type:Trading Company

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Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

2-(2H-Benzotriazol-2-yl)-p-cresol

Cas:2440-22-4

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O

tianfu-chem_ 2-(2H-Benzotriazol-2-yl)-p-cresol/ uv-71,cas:2440-22-4

Cas:2440-22-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin

Drometrizole

Cas:2440-22-4

Min.Order:1 Kilogram

FOB Price: $1350.0 / 2200.0

Type:Trading Company

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Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Low price CAS 2440-22-4 with best price

Cas:2440-22-4

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

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Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

2-(2H-Benzotriazol-2-yl)-p-cresol

Cas:2440-22-4

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

Jinlan Pharm-Drugs Technology Co.,Limited (with its export company Hangzhou Royall Import & Export Co.,Ltd.)is located in Hangzhou, Zhejiang Province. Neighboring Ningbo port, Shanghai port, Hangzhou Xiaoshan Int’l Airport and Shanghai Pu

2440-22-4/UVP

Cas:2440-22-4

Min.Order:1 Gram

FOB Price: $1.0

Type:Manufacturers

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Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages ♦ High purity, all above 98.5%, no impurities after dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W

2-(2H-Benzotriazol-2-yl)-p-cresol CAS2440-22-4

Cas:2440-22-4

Min.Order:1 Kilogram

FOB Price: $7.0 / 9.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Chemical name: 2-(2'-Hydroxy-5'-methyl-phenyl)benzotriazole Molecular formula: C13H11N3O Molecular weight: 225.3 Sales code: PS-P Appearance: White to pale yellow crystalline powder Content: ≥99% Melting point: 128-130℃ The loss

2-(2'-Hydroxy-5'-methyl-phenyl)benzotriazole

Cas:2440-22-4

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

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Hubei Langyou International Trading Co., Ltd

1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:White crystalline granules or powder. Storage:Store in seale

Hangzhou Sartort Biopharma Co., Ltd

Appearance:White to yellow powder Storage:15-25°C Package:25kg/drum Application:Drometrizole is an intermediate reactant in the synthesis of UV light absorbers for polyester fibers. Transportation:Express/Sea/Air Port:any port in china

UV-P/Drometrizole factory price

Cas:2440-22-4

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Lab/Research institutions

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Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

Phenol,2-(2H-benzotriazol-2-yl)-4-methyl- 2440-22-4

Cas:2440-22-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Leader Biochemical Group

About Product Details Items Specifications Test Results Appearance White to white crystalline powde

China Biggest Factory Manufacturer Supply Drometrizole CAS 2440-22-4

Cas:2440-22-4

Min.Order:100 Kilogram

FOB Price: $1.0 / 2.0

Type:Lab/Research institutions

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Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present

2-(2H-Benzotriazol-2-yl)-p-cresol with CAS:2440-22-4

Cas:2440-22-4

Min.Order:1 Kilogram

FOB Price: $20.0 / 35.0

Type:Trading Company

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Qingdao Beluga Import and Export Co., LTD

Drometrizole CAS: 2440-22-4 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermediate

Drometrizole CAS: 2440-22-4

Cas:2440-22-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

Phenol,2-(2H-benzotriazol-2-yl)-4-methyl-

Cas:2440-22-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Changchun Artel lmport and Export trade company

Product Detail Minimum Order Qty. 10 Gram

2-(2-Benzotriazolyl)-4-methylphenol CAS NO.2440-22-4

Cas:2440-22-4

Min.Order:10 Gram

Negotiable

Type:Trading Company

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Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

CAS NO.:2440-22-4

Cas:2440-22-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Wuhan Zenuo Biological Medicine Technology Co Ltd

Product Name: Drometrizole Synonyms: (2'-Hydroxy-5mg-methylphenyl) benzotriazole;Absorber UV-P;2-(2’-hydroxy-5-methyl;2-(2H-1,2,3-Benzotriazol-2-yl)-4-methylphenol;2-(2h-benzotriazol-2-yl)-4-methyl-pheno;2-(2h-benzotriazol-2-yl)-p-cre

Drometrizole high purity best quality

Cas:2440-22-4

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

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Lonwin Chemical Group Limited

2-(2H-Benzotriazol-2-yl)-p-cresol CAS: 2440-22-4 Specification Item Standard Identification A.H-NMR:Comply with the structure B.LC-MS:Comply with the structure C

Factory supply 2-(2H-Benzotriazol-2-yl)-p-cresol

Cas:2440-22-4

Min.Order:1 Kilogram

Negotiable

Type:Other

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Afine Chemicals Limited

Our Services 1. We are a professional exporter for Optical Brighteners, dyes, pigments 2. Stable and continue quality 3. Quickly delivery 4. Good service Our advantages 1. Government awarded company. Top 100 enterprises in Hangzhou 2. Qua

high purity Ultraviolet Absorbent UV-P cas no.2440-22-4

Cas:2440-22-4

Min.Order:25 Kilogram

Negotiable

Type:Lab/Research institutions

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Hebei Mojin Biotechnology Co.,Ltd

Hebei Mojin Biotechnology Co., Ltd,Our business covers more than 30 countries, most of the big customers come from Europe, America and other countries in the world, we can guarantee the quality and price. In recent decades, with the efforts of all em

UV-P CAS No. 2440-22-4 2- (2-Hydroxy-5-Methyl-Phenyl) -Benzotriazole

Cas:2440-22-4

Min.Order:1 Gram

FOB Price: $50.0

Type:Trading Company

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Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

2-(2H-Benzotriazol-2-yl)-p-cresol

Cas:2440-22-4

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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Synthetic route

4-methyl-2-(2-nitrophenylazo)phenol
1435-71-8

4-methyl-2-(2-nitrophenylazo)phenol

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With sodium hydroxide In ethanol; water at 50 - 55℃; electrochemical reaction;99.3%
With hydrogen; sodium hydroxide In ethanol; water at 80℃; under 18751.9 Torr; Reagent/catalyst; Autoclave;99.4%
With borane-ammonia complex In toluene at 50℃; for 5h; Reagent/catalyst; Solvent; Temperature;98.6%
2-nitro-2'-hydroxy-5'-methylazobenzene
1435-71-8

2-nitro-2'-hydroxy-5'-methylazobenzene

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With sodium hydroxide; thiourea S,S-dioxide In water; isopropyl alcohol for 3h; Heating;98%
With sodium hydroxide In isopropyl alcohol at 85℃; for 24h; Reduction; Cyclization; Irradiation;89%
With sodium hydroxide; bakers' yeast In ethanol 1.) r.t., 30 min, 2.) 80-85 deg C, 40 h;80%
C13H11N3O2

C13H11N3O2

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With hydrogenchloride In water; toluene at 70℃; for 2h; Reagent/catalyst; Temperature;92.4%
9-fluorenone
486-25-9

9-fluorenone

D-glucose
50-99-7

D-glucose

2-nitro-2'-hydroxy-5'-methyl-azobenzene
1435-71-8

2-nitro-2'-hydroxy-5'-methyl-azobenzene

A

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

B

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide
54659-85-7

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide

Conditions
ConditionsYield
With sodium hydroxide In methanol; waterA 92.1%
B n/a
With sodium hydroxide In methanol; waterA 92.1%
B n/a
2-nitro-2'-hydroxy-5'-methyl-azobenzene
1435-71-8

2-nitro-2'-hydroxy-5'-methyl-azobenzene

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With sodium hydroxide; zinc In water at 90℃; for 1.5h;92%
With sodium hydroxide; zinc In ethanol at 100℃; for 4h;85%
With dimethyl amine; palladium-carbon In water; toluene81%
With samarium diiodide In tetrahydrofuran for 0.833333h; Ambient temperature;97 % Spectr.
sodium azide

sodium azide

4-methyl-2-(2-nitrophenylazo)phenol
1435-71-8

4-methyl-2-(2-nitrophenylazo)phenol

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
In N,N-dimethyl acetamide at 130℃; for 4h;86%
4-methyl-2-(2-nitrophenylazo)phenol
1435-71-8

4-methyl-2-(2-nitrophenylazo)phenol

A

2-Methyl-1H-benzimidazole
615-15-6

2-Methyl-1H-benzimidazole

B

5-methylbenzo[d]oxazol-2(3H)-one
22876-15-9

5-methylbenzo[d]oxazol-2(3H)-one

C

2-nitro-aniline
88-74-4

2-nitro-aniline

D

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With carbon monoxide; triethylamine In 1,2-dichloro-benzene at 200℃; under 60800 Torr; for 8h; Further byproducts given;A n/a
B n/a
C 7%
D 82%
2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-2H-benzotriazole
23939-33-5

2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-2H-benzotriazole

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With aluminium trichloride; nitromethane In toluene for 7h; Heating;79%
2-nitro-2'-hydroxy-5'-methyl-azobenzene
1435-71-8

2-nitro-2'-hydroxy-5'-methyl-azobenzene

diethylamine
109-89-7

diethylamine

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
palladium on charcoal catalyst In methanol; phosphoric acid tributyl ester76%
2-Benzotriazol-2-yl-6-(1,1-dimethyl-propyl)-4-methyl-phenol

2-Benzotriazol-2-yl-6-(1,1-dimethyl-propyl)-4-methyl-phenol

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With aluminium trichloride; nitromethane In toluene for 7h; Heating;70%
Cu-II-acetylacetonate

Cu-II-acetylacetonate

2-nitro-2'-hydroxy-5'-methyl-azobenzene
1435-71-8

2-nitro-2'-hydroxy-5'-methyl-azobenzene

Trimethylenediamine
109-76-2

Trimethylenediamine

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
In N-methyl-acetamide64%
2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide
54659-85-7

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With dimethyl amine; aluminum nickel55%
2-Benzotriazol-2-yl-4-methyl-6-(1-methyl-1-phenyl-ethyl)-phenol

2-Benzotriazol-2-yl-4-methyl-6-(1-methyl-1-phenyl-ethyl)-phenol

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With aluminium trichloride; nitromethane In toluene for 7h; Heating;70 % Spectr.
4-methyl-2-(2-nitrophenylazo)phenol
1435-71-8

4-methyl-2-(2-nitrophenylazo)phenol

A

2-Methyl-1H-benzimidazole
615-15-6

2-Methyl-1H-benzimidazole

B

N-formyldiethylamine
617-84-5

N-formyldiethylamine

C

5-methylbenzo[d]oxazol-2(3H)-one
22876-15-9

5-methylbenzo[d]oxazol-2(3H)-one

D

2-nitro-aniline
88-74-4

2-nitro-aniline

E

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With carbon monoxide; triethylamine In 1,2-dichloro-benzene at 200℃; under 53200 Torr; for 5h; Product distribution; other tertiary amines, var. solvent, var. time;
4-methyl-2-(2-nitrophenylazo)phenol
1435-71-8

4-methyl-2-(2-nitrophenylazo)phenol

A

1,2-diamino-benzene
95-54-5

1,2-diamino-benzene

B

3-amino-4-hydroxytoluene
95-84-1

3-amino-4-hydroxytoluene

C

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With 2-bromo-2-nitropropane; zinc In methanol; dichloromethane for 21h; Ambient temperature;A n/a
B n/a
C 83 % Chromat.
With hydrogen; sodium hydroxide In water; isopropyl alcohol at 14.84℃; under 760.051 Torr; Reagent/catalyst;
2-nitro-2'-hydroxy-5'-methylazobenzene
1435-71-8

2-nitro-2'-hydroxy-5'-methylazobenzene

A

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

B

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide
54659-85-7

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide

C

2-(2-amino-phenylazo)-4-methyl-phenol

2-(2-amino-phenylazo)-4-methyl-phenol

Conditions
ConditionsYield
With sodium hydroxide; hydrogen; nickel In water; isopropyl alcohol at 59.85℃; under 412.533 - 11700.9 Torr; Kinetics; Further Variations:; Pressures; Reagents;
2-nitro-2'-hydroxy-5'-methyl-azobenzene
1435-71-8

2-nitro-2'-hydroxy-5'-methyl-azobenzene

A

1,2-diamino-benzene
95-54-5

1,2-diamino-benzene

B

3-amino-4-hydroxytoluene
95-84-1

3-amino-4-hydroxytoluene

C

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

D

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide
54659-85-7

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide

Conditions
ConditionsYield
With hydrogen; nickel In water; isopropyl alcohol at 59.85℃; Title compound not separated from byproducts;
4-methyl-2-(2-nitrophenylazo)phenol
1435-71-8

4-methyl-2-(2-nitrophenylazo)phenol

A

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

B

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide
54659-85-7

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide

C

4-methyl-2-(2-nitroso-phenylazo)-phenol

4-methyl-2-(2-nitroso-phenylazo)-phenol

D

4-methyl-2-[N'-(2-nitro-phenyl)-hydrazino]-phenol

4-methyl-2-[N'-(2-nitro-phenyl)-hydrazino]-phenol

Conditions
ConditionsYield
With hydrogen; nickel In water; isopropyl alcohol at 1.85℃; under 760 Torr; Product distribution; Kinetics;
C13H11N3O

C13H11N3O

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
In ethanol at -143.15℃;
p-cresol
106-44-5

p-cresol

NaCl

NaCl

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 73 percent / sodium hydroxide; sodium carbonate / H2O / 20 °C
2: 85 percent / zinc; sodium hydroxide / ethanol / 4 h / 100 °C
View Scheme
2-nitrobenzenediazonium chloride
119-66-4

2-nitrobenzenediazonium chloride

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 73 percent / sodium hydroxide; sodium carbonate / H2O / 20 °C
2: 85 percent / zinc; sodium hydroxide / ethanol / 4 h / 100 °C
View Scheme
2-(1,1-Dimethyl-propyl)-4-methyl-6-(2-nitro-phenylazo)-phenol

2-(1,1-Dimethyl-propyl)-4-methyl-6-(2-nitro-phenylazo)-phenol

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 50 percent / Zn, NaOH / ethanol; H2O / 2 h / Heating
2: 70 percent / AlCl3, CH3NO2 / toluene / 7 h / Heating
View Scheme
9-fluorenone
486-25-9

9-fluorenone

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide
54659-85-7

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
With sodium hydroxide; paraformaldehyde In methanol; water
With sodium hydroxide; paraformaldehyde In methanol; water
2-nitro-2'-hydroxy-5'-methyl-azobenzene
1435-71-8

2-nitro-2'-hydroxy-5'-methyl-azobenzene

copper diacetate
142-71-2

copper diacetate

Trimethylenediamine
109-76-2

Trimethylenediamine

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
In 5,5-dimethyl-1,3-cyclohexadiene; water; isopropyl alcohol; toluene
piperidine
110-89-4

piperidine

copper-II-acetylacetonate

copper-II-acetylacetonate

2-nitro-2'-hydroxy-5'-methyl-azobenzene
1435-71-8

2-nitro-2'-hydroxy-5'-methyl-azobenzene

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

Conditions
ConditionsYield
In 5,5-dimethyl-1,3-cyclohexadiene; water
4-methyl-2-(2-nitrophenylazo)phenol
1435-71-8

4-methyl-2-(2-nitrophenylazo)phenol

A

1,2-diamino-benzene
95-54-5

1,2-diamino-benzene

B

3-amino-4-hydroxytoluene
95-84-1

3-amino-4-hydroxytoluene

C

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

D

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide
54659-85-7

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide

Conditions
ConditionsYield
With hydrogen at 60℃; under 18751.9 Torr;
With 20% Ni/γ-Al2O3; hydrogen; triethylamine In toluene at 120℃; under 18751.9 Torr; Flow reactor;
4-methyl-2-(2-nitrophenylazo)phenol
1435-71-8

4-methyl-2-(2-nitrophenylazo)phenol

A

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

B

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide
54659-85-7

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide

Conditions
ConditionsYield
With hydrogen at 60℃; under 18751.9 Torr;
4-methyl-2-(2-nitrophenylazo)phenol
1435-71-8

4-methyl-2-(2-nitrophenylazo)phenol

A

tetrahydro-2-(2-hydroxy-5-methylphenyl)benzotriazole
50467-25-9

tetrahydro-2-(2-hydroxy-5-methylphenyl)benzotriazole

B

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

C

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide
54659-85-7

2-(2'-hydroxy-5'-methylphenyl)benzotriazole N-oxide

Conditions
ConditionsYield
With hydrogen at 60℃; under 18751.9 Torr;
diethylamine
109-89-7

diethylamine

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

2-(2H-benzotriazol-2-yl)-6-((diethylamino)methyl)-4-methylphenol
103597-49-5

2-(2H-benzotriazol-2-yl)-6-((diethylamino)methyl)-4-methylphenol

Conditions
ConditionsYield
With paraformaldehyde In butan-1-ol99%
With paraformaldehyde In butan-1-ol99%
With paraformaldehyde In butan-1-ol99%
With paraformaldehyde In butan-1-ol96.9%
1-dodecene
112-41-4

1-dodecene

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

2-(2-Hydroxy-3-dodecyl-5-methylphenyl)-2H-benzotriazole

2-(2-Hydroxy-3-dodecyl-5-methylphenyl)-2H-benzotriazole

Conditions
ConditionsYield
With active clay 22B at 160℃; for 2h; Inert atmosphere;97.7%
formaldehyd
50-00-0

formaldehyd

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

2-(2'-hydroxy-3'-chloromethyl-5'-methylphenyl)benzotriazole
18260-27-0

2-(2'-hydroxy-3'-chloromethyl-5'-methylphenyl)benzotriazole

Conditions
ConditionsYield
With hydrogenchloride; acetic acid at 60℃; for 10h;96%
With hydrogenchloride; sulfuric acid; acetic acid In water at 90℃; for 6h;95%
With hydrogenchloride; sulfuric acid In acetic acid at 90℃; for 6h;95%
With hydrogenchloride; acetic acid; zinc(II) chloride at 80℃; for 12h;
acetic anhydride
108-24-7

acetic anhydride

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

2-(2H-1,2,3-benzotriazol-2-yl)-4-methylphenyl acetate
69698-20-0

2-(2H-1,2,3-benzotriazol-2-yl)-4-methylphenyl acetate

Conditions
ConditionsYield
With sulfuric acid Heating;95.1%
Stage #1: acetic anhydride; 2-(2-Hydroxy-5-methylphenyl)benzotriazole With sulfuric acid at 20℃; for 1h;
Stage #2: for 1h; Heating;
94%
With dmap; triethylamine In tetrahydrofuran Inert atmosphere;47.22 g
With dmap; triethylamine In tetrahydrofuran at 20℃; Inert atmosphere;
benzyl bromide
100-39-0

benzyl bromide

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

C20H17N3O

C20H17N3O

Conditions
ConditionsYield
With potassium carbonate In acetone at 70℃; for 8h; Heating / reflux;92%
2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

2-(2'-hydroxy-3'-bromo-5'-methylphenyl)benzotriazole
54408-68-3

2-(2'-hydroxy-3'-bromo-5'-methylphenyl)benzotriazole

Conditions
ConditionsYield
With bromine In 1,2-dichloro-ethane at 20℃; for 8h;92%
formaldehyd
50-00-0

formaldehyd

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

6,6'-bis-benzotriazol-2-yl-4,4'-dimethyl-2,2'-methanediyl-bis-phenol
30653-05-5

6,6'-bis-benzotriazol-2-yl-4,4'-dimethyl-2,2'-methanediyl-bis-phenol

Conditions
ConditionsYield
Stage #1: formaldehyd; 2-(2-Hydroxy-5-methylphenyl)benzotriazole With diethylamine In butan-1-ol at 95 - 105℃; for 24h;
Stage #2: With sodium methylate In o-xylene at 140 - 150℃; for 10h; Solvent;
90.4%
water
7732-18-5

water

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

zinc(II) chloride
7646-85-7

zinc(II) chloride

[Zn(hmbt)2(H2O)2]

[Zn(hmbt)2(H2O)2]

Conditions
ConditionsYield
for 4h; Reflux;87%
2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

3-Chloro-2-methylpropene
563-47-3

3-Chloro-2-methylpropene

2-(2H-1,2,3-benzotriazol-2-yl)-4-methyl-6-(2-methylprop-2-enyl)phenol
98809-58-6

2-(2H-1,2,3-benzotriazol-2-yl)-4-methyl-6-(2-methylprop-2-enyl)phenol

Conditions
ConditionsYield
With N,N-dimethyl-aniline; triethylamine In butanone at 80 - 180℃; Product distribution / selectivity; Claisen rearrangement; Inert atmosphere; Molecular sieve;86%
bis-triphenylphosphine-palladium(II) chloride
13965-03-2

bis-triphenylphosphine-palladium(II) chloride

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

[Pd(PPh3)(hmbt)Cl]
1552277-81-2

[Pd(PPh3)(hmbt)Cl]

Conditions
ConditionsYield
In dichloromethane for 48h; Reflux;86%
silver perchlorate

silver perchlorate

triphenylphosphine
603-35-0

triphenylphosphine

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

[Ag(PPh3)(hmbt)]

[Ag(PPh3)(hmbt)]

Conditions
ConditionsYield
With potassium hydroxide In methanol; water for 3h; Darkness;86%
benzoyl chloride
98-88-4

benzoyl chloride

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

benzoic acid 2-(benzotriazol-2-yl)-4-methylphenyl ester

benzoic acid 2-(benzotriazol-2-yl)-4-methylphenyl ester

Conditions
ConditionsYield
With pyridine for 2h; Heating;85%
aluminum (III) chloride In dichloromethane for 2h; Reflux;
[ReOBr3(triphenylarsine)2]
19271-56-8, 136173-40-5

[ReOBr3(triphenylarsine)2]

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

acetonitrile
75-05-8

acetonitrile

[ReOBr2(2-(2-hydroxy-5-methylphenyl)benzotriazolato)(AsPh3)]*MeCN

[ReOBr2(2-(2-hydroxy-5-methylphenyl)benzotriazolato)(AsPh3)]*MeCN

Conditions
ConditionsYield
In acetonitrile ReOBr3(AsPh3)2 added to 2-(2-hydroxy-5-methylphenyl)benzotriazole in MeCN; refluxed for 2 h; allowed to cool to room temp.; pptd. by reducing in vol.; filtered; dried in air; elem. anal.;85%
1-(2-aminoethyl)piperidine
27578-60-5

1-(2-aminoethyl)piperidine

formaldehyd
50-00-0

formaldehyd

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

C35H38N8O2
1400879-39-1

C35H38N8O2

Conditions
ConditionsYield
In toluene for 48h; Inert atmosphere; Reflux;85%
zirconium(IV) tetraisopropoxide 2-propanol
14717-56-7

zirconium(IV) tetraisopropoxide 2-propanol

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

C44H62N6O8Zr2
1491152-50-1

C44H62N6O8Zr2

Conditions
ConditionsYield
In toluene at 20℃; Schlenk technique; Inert atmosphere;85%
niobium pentachloride
10026-12-7

niobium pentachloride

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

C13H10Cl4N3NbO

C13H10Cl4N3NbO

Conditions
ConditionsYield
Stage #1: niobium pentachloride; 2-(2-Hydroxy-5-methylphenyl)benzotriazole In toluene at 0℃; Inert atmosphere; Schlenk technique; Glovebox;
Stage #2: In toluene at 20℃; for 12h; Inert atmosphere; Schlenk technique; Glovebox;
85%
2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

2-(2'-hydroxy-5'-methyl-3'-nitrophenyl)-2H-benzotriazole
36325-72-1

2-(2'-hydroxy-5'-methyl-3'-nitrophenyl)-2H-benzotriazole

Conditions
ConditionsYield
With nitric acid In acetic acid at 70℃; for 0.166667h;84%
zirconium(IV) chloride
10026-11-6

zirconium(IV) chloride

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

C26H20Cl2N6O2Zr
1491152-60-3

C26H20Cl2N6O2Zr

Conditions
ConditionsYield
Stage #1: 2-(2-Hydroxy-5-methylphenyl)benzotriazole With sodium hydride In tetrahydrofuran at 20℃; for 5h; Schlenk technique; Inert atmosphere;
Stage #2: zirconium(IV) chloride In toluene at -24℃; Schlenk technique; Inert atmosphere;
84%
morpholine
110-91-8

morpholine

formaldehyd
50-00-0

formaldehyd

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

C18H20N4O2

C18H20N4O2

Conditions
ConditionsYield
In neat (no solvent) Reflux;84%
tris(triphenylphosphine)ruthenium(II) chloride
15529-49-4, 41756-81-4

tris(triphenylphosphine)ruthenium(II) chloride

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

[Ru(PPh3)(hmbt)2Cl]

[Ru(PPh3)(hmbt)2Cl]

Conditions
ConditionsYield
In methanol for 2h; Reflux;83%
potassium tetrachloropalladate(II)
10025-98-6

potassium tetrachloropalladate(II)

2-(2-Hydroxy-5-methylphenyl)benzotriazole
2440-22-4

2-(2-Hydroxy-5-methylphenyl)benzotriazole

[Pd(hmbt)2]
1254251-47-2

[Pd(hmbt)2]

Conditions
ConditionsYield
With potassium hydroxide In methanol; water at 45℃; for 2h;83%

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