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Jinan Finer Chemical Co., Ltd

Product description: Product Name 4,4-Dimethoxy-2-butanone CAS No. 5436-21-5 Appearance Colorless to yellowish liquid Assay ≥99% Capacity 100mt/year Application Pharmaceutica

4,4-Dimethoxy-2-butanone

Cas:5436-21-5

Min.Order:1 Kilogram

FOB Price: $10.0 / 15.0

Type:Lab/Research institutions

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Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantities

Acetylacetaldehyde dimethyl acetal Manufacturer/High quality/Best price/In stock

Cas:5436-21-5

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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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

High quality 4,4-Dimethoxy-2-Butanone supplier in China

Cas:5436-21-5

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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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 4,4-Dimethoxy-2-Butanone

Cas:5436-21-5

Min.Order:1

Negotiable

Type:Other

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EAST CHEMSOURCES LIMITED

Mainly used as intermediates for pesticides. Appearance:Colorless to yellowish liquid Storage:Stored in the ventilated, low temperature and dry room away from direct sunlight. Package:200kg/drum Application:Mainly used as intermediates for pesticide

Acetylacetaldehyde dimethyl acetal

Cas:5436-21-5

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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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

Large Stock 99.0% 4,4-Dimethoxy-2-butanone 5436-21-5 Producer

Cas:5436-21-5

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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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

4,4-Dimethoxy-2-butanone

Cas:5436-21-5

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

Henan Tianfu Chemical Co., Ltd. is located in Zhengzhou High-tech Development Zone with import and export license. We passed ISO 9001:2008 in 2009, and won "High-tech Enterprise" by provincial government in 2013.The objective of the com

TIANFU-CHEM - Acetylacetaldehyde dimethyl acetal

Cas:5436-21-5

Min.Order:1 Gram

FOB Price: $1000.0

Type:Lab/Research institutions

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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

Factory direct supply CAS 5436-21-5 with best quality

Cas:5436-21-5

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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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

Acetylacetaldehyde dimethyl acetal CAS5436-21-5

Cas:5436-21-5

Min.Order:1 Kilogram

FOB Price: $289.0 / 499.0

Type:Trading Company

inquiry

Henan Sinotech Import&Export Corporation

Product Name: Acetylacetaldehyde dimethyl acetal Synonyms: FEMA 3381;FADMA;FORMYLACETONE DIMETHYL ACETAL;KBA;1,1-DIMETHOXY BUTANONE-3;1,1-DIMETHOXY-3-BUTANONE;AADMA;ACETYLACETALDEHYDE DIMETHYL ACETAL

Acetylacetaldehyde dimethyl acetal

Cas:5436-21-5

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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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

2-Butanone,4,4-dimethoxy- 5436-21-5

Cas:5436-21-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

Acetylacetaldehyde dimethyl acetal CAS:5436-21-5

Cas:5436-21-5

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Acetylacetaldehyde dimethyl acetal CAS:5436-21-5 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

Acetylacetaldehyde dimethyl acetal CAS:5436-21-5

Cas:5436-21-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

2-Butanone,4,4-dimethoxy-

Cas:5436-21-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s

Acetylacetaldehyde dimethyl acetal

Cas:5436-21-5

Min.Order:1 Kilogram

FOB Price: $40.0 / 50.0

Type:Lab/Research institutions

inquiry

Lonwin Chemical Group Limited

4,4-Dimethoxy-2-butanone CAS:5436-21-5 Specification Product Name 4,4-Dimethoxy-2-butanone CAS No. 5436-21-5 Appearance Colorless to yellowish liquid Assay ≥99% Capacity 100mt/year

Factory Supply 4,4-Dimethoxy-2-butanone

Cas:5436-21-5

Min.Order:1 Kilogram

FOB Price: $100.0 / 150.0

Type:Other

inquiry

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

2-Butanone,4,4-dimethoxy-

Cas:5436-21-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

Acetylacetaldehyde dimethyl acetal

Cas:5436-21-5

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

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

Acetylacetaldehyde dimethyl acetal

Cas:5436-21-5

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

4,4-DIMETHOXY-2-BUTANONE

Cas:5436-21-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

Acetylacetaldehyde dimethyl acetal

Cas:5436-21-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Massive Chemical Technology Co., Ltd.

Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and

4,4-Dimethxoy-2-butanone/High quality/Best price

Cas:5436-21-5

Min.Order:1 Gram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

High quality 4,4-Dimethoxy-2-Butanone

Cas:5436-21-5

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

Acetylacetaldehyde dimethyl acetal

Cas:5436-21-5

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

YUNBIO TECH CO.,LTD

Our Strength:-Flexible: We work in small teams with rapid communication channels. Respond quickly and efficiently to customer and market needs.-Innovative: We are focusing on the development of new products and keep close relationships with our custo

4,4-DIMETHOXYBUTANON (DMB)

Cas:5436-21-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Siwei Development Group Ltd.

Product name: 4,4-Dimethoxy-2-Butanone CAS No.:5436-21-5 Molecule Formula:C6H12O3 Molecule Weight:132.36 Purity: 99.0% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise Standard TESTING I

High Quality 4,4-Dimethoxy-2-Butanone

Cas:5436-21-5

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

Acetylacetaldehyde dimethyl acetal

Cas:5436-21-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Minstar Chemical Co., Ltd

Acetylacetaldehyde dimethyl acetal Chemical Properties Melting point -82 °C Boiling point 70-73 °C/20 mmHg (lit.) density 0.996 g/mL at 25 °C (lit.) FEMA 3381 | 3-OXOBUTANAL DIMETHYL ACETAL refractive index n20/D 1.414

4,4-Dimethoxy-2-butanone

Cas:5436-21-5

Min.Order:1 Gram

FOB Price: $66.0

Type:Lab/Research institutions

inquiry

Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W

Acetylacetaldehyde dimethyl acetal

Cas:5436-21-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

methanol
67-56-1

methanol

trans-4-methoxy-3-buten-2-one
51731-17-0

trans-4-methoxy-3-buten-2-one

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
pyrrolidine; methanesulfonic acid at 20℃; for 28h; oxy-Michael reaction;99%
3-butenal dimethyl acetal
72380-56-4

3-butenal dimethyl acetal

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
With tert.-butylhydroperoxide; C21H19N5Pd(2+)*2BF4(1-) In decane; acetonitrile at 70℃; for 24h; Temperature; Wacker Oxidation;95%
2-methyl-propan-1-ol
78-83-1

2-methyl-propan-1-ol

(Z)-4-methoxybut-3-en-2-one
57155-06-3

(Z)-4-methoxybut-3-en-2-one

A

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

B

4-isobutoxy-but-3-en-2-one
85716-38-7

4-isobutoxy-but-3-en-2-one

C

4-isobutoxy-4-methoxybutan-2-one

4-isobutoxy-4-methoxybutan-2-one

Conditions
ConditionsYield
for 10h; Heating; Yields of byproduct given;A n/a
B 90%
C n/a
2-(Trimethylsilyloxy)propene
1833-53-0

2-(Trimethylsilyloxy)propene

trimethyl orthoformate
149-73-5

trimethyl orthoformate

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
With zinc(II) chloride In ethyl acetate at 20 - 25℃; for 2h;87%
dodecacarbonyltetrarhodium(0) In benzene at 100℃; for 18h;48%
3-oxobutyraldehyde
625-34-3

3-oxobutyraldehyde

trimethyl orthoformate
149-73-5

trimethyl orthoformate

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
With tropylium tetrafluoroborate In acetonitrile at 70℃; for 5h; Inert atmosphere; Green chemistry; chemoselective reaction;69%
1-methoxy-buten-3-yne
2798-73-4

1-methoxy-buten-3-yne

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
With water; mercury(II) sulfate In diethylene glycol at 80℃; for 0.5h;14%
methanol
67-56-1

methanol

1-methoxy-buten-3-yne
2798-73-4

1-methoxy-buten-3-yne

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
With sulfuric acid
With mercury(II) sulfate In water
With sulfuric acid; water
methanol
67-56-1

methanol

tetrachloromethane
56-23-5

tetrachloromethane

4-chloro-3-buten-2-one
7119-27-9

4-chloro-3-buten-2-one

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
at -15 - -10℃;
at -15 - -10℃;
methanol
67-56-1

methanol

4-chloro-3-buten-2-one
7119-27-9

4-chloro-3-buten-2-one

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
With sodium hydroxide at -15 - -10℃;
With sodium hydroxide at -15 - -10℃;
methanol
67-56-1

methanol

1-methoxy-3-methylsulfanyl-buta-1,2-diene
56699-02-6

1-methoxy-3-methylsulfanyl-buta-1,2-diene

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
With mercury dichloride
3-oxobutyraldehyde
625-34-3

3-oxobutyraldehyde

methanol
67-56-1

methanol

A

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

B

trans-4-methoxy-3-buten-2-one
51731-17-0

trans-4-methoxy-3-buten-2-one

Conditions
ConditionsYield
Product distribution; other β-ketoaldehydes, other alcohols, var. solvents;
methanol
67-56-1

methanol

4-methoxy-3-buten-2-one
4652-27-1

4-methoxy-3-buten-2-one

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

methanol
67-56-1

methanol

acetone
67-64-1

acetone

formic acid ethyl ester
109-94-4

formic acid ethyl ester

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
Yield given. Multistep reaction;
methanol
67-56-1

methanol

1-methoxy-buten-3-yne
2798-73-4

1-methoxy-buten-3-yne

sulfuric acid
7664-93-9

sulfuric acid

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

1,1,3,3-tetramethoxy-butane
5744-65-0

1,1,3,3-tetramethoxy-butane

water
7732-18-5

water

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
at 50 - 60℃;
methanol
67-56-1

methanol

1,1-dimethoxy-but-2-yne
22022-34-0

1,1-dimethoxy-but-2-yne

mercury(II) sulfate

mercury(II) sulfate

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

methanol
67-56-1

methanol

hydroxymethylenacetone sodium

hydroxymethylenacetone sodium

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
With sulfuric acid; benzene
methanol
67-56-1

methanol

sodium-compound of acetoacetaldehyde

sodium-compound of acetoacetaldehyde

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
With hydrogenchloride
methanol
67-56-1

methanol

1,4-dimethyl-cyclohexa-1,4-diene
4074-22-0

1,4-dimethyl-cyclohexa-1,4-diene

A

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

(3R,5S)-3,5-Dimethoxy-3-methyl-[1,2]dioxolane

(3R,5S)-3,5-Dimethoxy-3-methyl-[1,2]dioxolane

Conditions
ConditionsYield
With toluene-4-sulfonic acid; ozone In chloroform-d1 at -78℃; Title compound not separated from byproducts;
methanol
67-56-1

methanol

Methyl formate
107-31-3

Methyl formate

acetone
67-64-1

acetone

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
Stage #1: Methyl formate; acetone With sodium methylate In diethyl ether at 20℃; for 3h;
Stage #2: methanol With sulfuric acid at 20℃; for 12h;
acetone
67-64-1

acetone

trimethyl orthoformate
149-73-5

trimethyl orthoformate

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
Stage #1: trimethyl orthoformate With boron trifluoride diethyl etherate In dichloromethane at -40 - 0℃; for 0.5h;
Stage #2: acetone With N-ethyl-N,N-diisopropylamine In dichloromethane at -78 - 20℃; for 1h;
methanol
67-56-1

methanol

methyl vinyl ketone
78-94-4

methyl vinyl ketone

A

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

B

1-methoxybutan-3-one
6975-85-5

1-methoxybutan-3-one

Conditions
ConditionsYield
With carbon dioxide; oxygen; sodium phosphate; copper(l) chloride; palladium dichloride at 50℃; under 90007.2 Torr; for 12h;A 83.2 % Chromat.
B 12.8 % Chromat.
With carbon dioxide; polystyrene-supported benzoquinone; oxygen; palladium dichloride at 50℃; under 60004.8 Torr; for 12h;A 76.8 % Chromat.
B 13.4 % Chromat.
methanol
67-56-1

methanol

methyl vinyl ketone
78-94-4

methyl vinyl ketone

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
With carbon dioxide; oxygen; palladium dichloride at 50℃; under 105011 Torr; for 15h;88.6 % Chromat.
methanol
67-56-1

methanol

3-oxo-butyraldehyde; sodium enolate
41125-09-1, 14975-15-6, 926-59-0

3-oxo-butyraldehyde; sodium enolate

A

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

B

4-methoxy-3-buten-2-one
4652-27-1

4-methoxy-3-buten-2-one

Conditions
ConditionsYield
With hydrogenchloride at 20℃; for 4h;
Methyl formate
107-31-3

Methyl formate

acetone
67-64-1

acetone

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

Conditions
ConditionsYield
Stage #1: Methyl formate; acetone With sodium methylate In methanol at 40℃; for 5h;
Stage #2: With sulfuric acid In methanol at 30℃; for 5h;
195.6 g
methanol
67-56-1

methanol

methyl ethynyl ketone
1423-60-5

methyl ethynyl ketone

benzyl azide
622-79-7

benzyl azide

A

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

B

1-(1-benzyl-1H-1,2,3-triazol-4-yl)ethan-1-one
80819-67-6

1-(1-benzyl-1H-1,2,3-triazol-4-yl)ethan-1-one

Conditions
ConditionsYield
With DBN; oxygen; copper(II) acetate monohydrate at 0 - 20℃; for 3h;
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

1,1-dimethoxybutan-3-ol
39562-58-8

1,1-dimethoxybutan-3-ol

Conditions
ConditionsYield
With sodium tetrahydroborate In tetrahydrofuran; methanol at 0 - 20℃; for 0.5h;100%
With sodium tetrahydroborate In ethanol for 2h; Ambient temperature;84%
With methanol; sodium tetrahydroborate In tetrahydrofuran at 0 - 20℃; for 2h;79%
1-phenylpyrazol-5-amine
826-85-7

1-phenylpyrazol-5-amine

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

6-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine
59026-68-5

6-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine

Conditions
ConditionsYield
zinc(II) chloride In hydrogenchloride; ethanol for 1h; Heating;100%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

1,3-diphenyl-1H-pyrazol-5-amine
5356-71-8

1,3-diphenyl-1H-pyrazol-5-amine

6-Methyl-1,3-diphenyl-1H-pyrazolo[3,4-b]pyridine
84647-18-7

6-Methyl-1,3-diphenyl-1H-pyrazolo[3,4-b]pyridine

Conditions
ConditionsYield
zinc(II) chloride In hydrogenchloride; ethanol for 1h; Heating;100%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

1-methyl-3-phenyl-1H-pyrazol-5-amine
10199-50-5

1-methyl-3-phenyl-1H-pyrazol-5-amine

1,6-Dimethyl-3-phenyl-1H-pyrazolo[3,4-b]pyridine
116835-07-5

1,6-Dimethyl-3-phenyl-1H-pyrazolo[3,4-b]pyridine

Conditions
ConditionsYield
zinc(II) chloride In hydrogenchloride; ethanol for 1h; Heating;100%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

4-amidinopyridine hydrochloride
6345-27-3, 42518-06-9, 61875-64-7

4-amidinopyridine hydrochloride

4-(4-methylpyrimidin-2-yl)pyridine
182416-44-0

4-(4-methylpyrimidin-2-yl)pyridine

Conditions
ConditionsYield
In 1,4-dioxane Heating;100%
In 1,4-dioxane Reflux; Inert atmosphere;62%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

methylamine
74-89-5

methylamine

1-methylamino-1-butenone
20082-88-6

1-methylamino-1-butenone

Conditions
ConditionsYield
In methanol at 20℃; for 12h; Inert atmosphere;100%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

C15H24N2O2

C15H24N2O2

C21H36N2O4

C21H36N2O4

Conditions
ConditionsYield
Stage #1: acetylacetaldehyde dimethyl acetal; C15H24N2O2 With acetic acid In tetrahydrofuran at -10 - -5℃; for 1h;
Stage #2: With sodium cyanoborohydride In tetrahydrofuran at 0 - 10℃; for 2h;
100%
(-)-3-amino-5-(5-fluoro-2-methylphenyl)-2-cyclohexenon-1-one

(-)-3-amino-5-(5-fluoro-2-methylphenyl)-2-cyclohexenon-1-one

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

(-)-7-(5-fluoro-2-methylphenyl)-4-methyl-7,8-dihydroquinolin-5(6H)-one
239132-05-9

(-)-7-(5-fluoro-2-methylphenyl)-4-methyl-7,8-dihydroquinolin-5(6H)-one

Conditions
ConditionsYield
With sodium methylate; potassium carbonate In water; toluene98.8%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

thiourea
17356-08-0

thiourea

2-mercapto-6-methylpyrimidine
35071-17-1, 774119-15-2

2-mercapto-6-methylpyrimidine

Conditions
ConditionsYield
With hydrogenchloride In water at 50℃;95%
With hydrogenchloride In methanol at 50℃; Rate constant; temperature 60 or 70 deg C, water as solvent;
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

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

3-Chloro-2-methylpropene

1,1-Dimethoxy-3,5-dimethyl-hex-5-en-3-ol
124538-13-2

1,1-Dimethoxy-3,5-dimethyl-hex-5-en-3-ol

Conditions
ConditionsYield
With manganese; zinc(II) chloride In tetrahydrofuran at 60℃;95%
1,2,3-Benzotriazole
95-14-7

1,2,3-Benzotriazole

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

4,4-di(benzotriazol-1-yl)-2-butanone

4,4-di(benzotriazol-1-yl)-2-butanone

Conditions
ConditionsYield
With PF-5080; toluene-4-sulfonic acid for 22h; Heating;95%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

dimethyl amine
124-40-3

dimethyl amine

4-dimethylamino-3-buten-2-one
1190-91-6

4-dimethylamino-3-buten-2-one

Conditions
ConditionsYield
In water at 25℃; for 4h;95%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

4-methoxybenzamidine hydrochloride
51721-68-7

4-methoxybenzamidine hydrochloride

4-methyl-2-(4-methoxyphenyl)pyrimidine

4-methyl-2-(4-methoxyphenyl)pyrimidine

Conditions
ConditionsYield
With sodium methylate In methanol at 50℃; for 14h; Inert atmosphere;95%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

dimethyl amine
124-40-3

dimethyl amine

(E)-4-(dimethylamino)but-3-en-2-one
2802-08-6

(E)-4-(dimethylamino)but-3-en-2-one

Conditions
ConditionsYield
With triethylamine In water at 25℃; for 4h;95%
In methanol at 20℃; for 4h;90%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

benzamidine monohydrochloride
1670-14-0

benzamidine monohydrochloride

4-methyl-2-phenylpyrimidine
34771-48-7

4-methyl-2-phenylpyrimidine

Conditions
ConditionsYield
With sodium methylate In methanol at 45 - 50℃; for 6h;91.3%
N-(3-(((2,6-difluorophenyl)amino)sulfonyl)-1H-1,2,4-triazol-5-yl)amine
113171-12-3

N-(3-(((2,6-difluorophenyl)amino)sulfonyl)-1H-1,2,4-triazol-5-yl)amine

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

N-(2,6-difluorophenyl)-5-methyl[1,2,4]triazolo[1,5-a]pyrimidine-2-sulfonamide
98967-40-9

N-(2,6-difluorophenyl)-5-methyl[1,2,4]triazolo[1,5-a]pyrimidine-2-sulfonamide

Conditions
ConditionsYield
With hydrogenchloride; sodium hydroxide; sodium carbonate; sodium chloride In water91%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

trimethyl orthoformate
149-73-5

trimethyl orthoformate

1,1,3,3-tetramethoxy-butane
5744-65-0

1,1,3,3-tetramethoxy-butane

Conditions
ConditionsYield
With toluene-4-sulfonic acid In methanol at 20℃; for 24h;90%
With sulfuric acid
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

3-(β-ionilidene)-1-propyne
103633-89-2

3-(β-ionilidene)-1-propyne

(6E,8E)-1,1-Dimethoxy-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-6,8-dien-4-yn-3-ol
74352-13-9, 77871-12-6, 77871-15-9

(6E,8E)-1,1-Dimethoxy-3,7-dimethyl-9-(2,6,6-trimethyl-cyclohex-1-enyl)-nona-6,8-dien-4-yn-3-ol

Conditions
ConditionsYield
With n-butyllithium In tetrahydrofuran at -60℃;90%
With n-butyllithium In tetrahydrofuran; hexane for 1h; -60 deg C to room t.;90%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

1-ethoxy-1-(tert-butyldimethylsilyloxy)ethene
42201-84-3

1-ethoxy-1-(tert-butyldimethylsilyloxy)ethene

3-(tert-Butyl-dimethyl-silanyloxy)-5,5-dimethoxy-3-methyl-pentanoic acid ethyl ester

3-(tert-Butyl-dimethyl-silanyloxy)-5,5-dimethoxy-3-methyl-pentanoic acid ethyl ester

Conditions
ConditionsYield
With bis-(pentafluoro phenyl) dibromo stannane In dichloromethane at -78℃; for 3h;90%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

methyl allylcarbamate
19364-21-7

methyl allylcarbamate

Allyl-((E)-3-oxo-but-1-enyl)-carbamic acid methyl ester
219826-40-1

Allyl-((E)-3-oxo-but-1-enyl)-carbamic acid methyl ester

Conditions
ConditionsYield
With toluene-4-sulfonic acid In chloroform Heating;90%
With toluene-4-sulfonic acid In chloroform for 27h; Heating;90%
2,6-Diaminopyridine
141-86-6

2,6-Diaminopyridine

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

2-amino-7-methyl-1,8-naphthyridine
1568-93-0

2-amino-7-methyl-1,8-naphthyridine

Conditions
ConditionsYield
With phosphoric acid In water at 90℃; for 3h;90%
In various solvent(s) Cyclization;79%
With phosphoric acid at 90℃; for 24h;72%
2-methyl-1H-indole
95-20-5

2-methyl-1H-indole

acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

2-methyl-3-(3-phenyl)indole
1157851-94-9

2-methyl-3-(3-phenyl)indole

Conditions
ConditionsYield
With 4-n-butyl-4-(3-sulfopropyl)thiomorpholinium 1,1-dioxide trifluoromethane sulfonate In neat (no solvent) at 60℃; for 15h; Green chemistry;90%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

2-(diethoxymethyl)formamidine hydrochloride

2-(diethoxymethyl)formamidine hydrochloride

2-(diethoxymethyl)-4-methylpyrimidine

2-(diethoxymethyl)-4-methylpyrimidine

Conditions
ConditionsYield
Stage #1: acetylacetaldehyde dimethyl acetal With sodium hydride In ethanol; mineral oil for 0.5h; Inert atmosphere;
Stage #2: 2-(diethoxymethyl)formamidine hydrochloride In ethanol; mineral oil for 4h; Reflux;
90%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

2-chlorobenzimidamide
45743-05-3

2-chlorobenzimidamide

2-(2-chlorophenyl)-4-methylpyrimidine
1332503-18-0

2-(2-chlorophenyl)-4-methylpyrimidine

Conditions
ConditionsYield
With sodium acetate In para-xylene for 13h; Schlenk technique; Inert atmosphere; Reflux;90%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

2-methylbenzamidine
18636-97-0

2-methylbenzamidine

4-methyl-2-(2-methylphenyl)pyrimidine

4-methyl-2-(2-methylphenyl)pyrimidine

Conditions
ConditionsYield
With sodium acetate In para-xylene for 10h; Schlenk technique; Inert atmosphere; Reflux;90%
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

1,3,5-triacetylbenzene
779-90-8

1,3,5-triacetylbenzene

Conditions
ConditionsYield
With aluminum (III) chloride In ethanol; acetic acid at 60℃; for 15h;89%
With water
With water
acetylacetaldehyde dimethyl acetal
5436-21-5

acetylacetaldehyde dimethyl acetal

5-amino-3-methyl-N-phenylpyrazole-4-carboxamide
96319-19-6

5-amino-3-methyl-N-phenylpyrazole-4-carboxamide

2,7-dimethyl-N-phenylpyrazolo<1,5-a>pyrimidine-3-carboxamide
96319-22-1

2,7-dimethyl-N-phenylpyrazolo<1,5-a>pyrimidine-3-carboxamide

Conditions
ConditionsYield
With hydrogenchloride In ethanol at 60 - 80℃; for 2h;89%

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