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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

Ethyl propiolate Manufacturer/High quality/Best price/In stock

Cas:623-47-2

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 Ethyl Propiolate supplier in China

Cas:623-47-2

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Hefei TNJ chemical industry co.,ltd

Company Name: Hefei TNJ Chemical Industry Co.,Ltd. Registered Address: B911 Xincheng Business Center,South of Dongliu Road, Zhengwu District, Hefei, Anhui,China

Ethyl propiolate/EPL, CAS No.: 623-47-2

Cas:623-47-2

Min.Order:5 Metric Ton

Negotiable

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 Ethyl propiolate

Cas:623-47-2

Min.Order:1

Negotiable

Type:Other

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Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap

Ethyl propiolate

Cas:623-47-2

Min.Order:1 Kilogram

FOB Price: $1.0

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

Propiolic acid ethyl ester

Cas:623-47-2

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

Competitive Price High Quality Fast Delivery custom-made Welcome to Henan Tianfu Chemical Co., Ltd. website. Our company engages in Sodium Tripolyphosphate (STPP) and Sodium Hexametabphosphate (SHMP) production; development of noble me

Ethyl propiolate 623-47-2

Cas:623-47-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

623-47-2 Ethyl propiolate

Cas:623-47-2

Min.Order:1 Kilogram

FOB Price: $15.0 / 50.0

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

Manufacturer supply CAS 623-47-2 with best quality

Cas:623-47-2

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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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 developmen

ethyl propiolate CAS NO.623-47-2

Cas:623-47-2

Min.Order:20 Kilogram

FOB Price: $10.0 / 100.0

Type:Trading Company

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LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&amp

Ethyl propiolate/ LIDE PHARMA- Factory supply / Best price

Cas:623-47-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Henan Sinotech Import&Export Corporation

Product Name: Ethyl propiolate Synonyms: ETHYL PROPIOLATE, 98%ETHYL PROPIOLATE, 98%ETHYL PROPIOLATE, 98%ETHYL PROPIOLATE, 98%;Ethyl propargylate;Ethyl propiolate ,98%;HC≡CCO2C2H5;ETHYL PROPIOLATE 98%;

Ethyl propiolate

Cas:623-47-2

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-Propynoic acid, ethylester 623-47-2

Cas:623-47-2

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 prese

In organic synthesis, peptide coupling reagent., Ethyl propiolate CAS:623-47-2

Cas:623-47-2

Min.Order:1 Kilogram

FOB Price: $21.7 / 28.3

Type:Trading Company

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Qingdao Beluga Import and Export Co., LTD

Ethyl propiolate CAS:623-47-2 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 intermedia

Ethyl propiolate CAS:623-47-2

Cas:623-47-2

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-Propynoic acid, ethylester

Cas:623-47-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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.:623-47-2

Cas:623-47-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

Ethyl Propiolate

Cas:623-47-2

Min.Order:0

Negotiable

Type:Manufacturers

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Hangzhou ZeErRui Chemical Co., Ltd.

Hangzhou ZeErRui Chemical Co., Ltd. located in Lingang industrial areas, our plant covers an area of 6000 square meters.ZeErRui dedicated to the development, production and marketing of chemicals. We have earned ourselves a good reputation at home

Ethyl propiolate

Cas:623-47-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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

Ethyl propiolate

Cas:623-47-2

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

ETHYL PROPIOLATE

Cas:623-47-2

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

Ethyl propiolate

Cas:623-47-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

Reliable quality 623-47-2 global trader Ethyl propiolate ethyl propiolate is an important organic chemical raw materials and pharmaceutical intermediates. In the prior art, propargyl alcohol is used as a raw material, and propargyl acid ester is ob

Reliable quality 623-47-2 global trader Ethyl propiolate

Cas:623-47-2

Min.Order:1 Gram

Negotiable

Type:Other

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

Ethyl propiolate/High quality/Best price/Manufacturer

Cas:623-47-2

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 Ethyl Propiolate

Cas:623-47-2

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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Siwei Development Group Ltd.

Product name: Ethyl Propiolate CAS No.:623-47-2 Molecule Formula:C5H6O2 Molecule Weight:98.10 Purity: 98% Package: 25kg/drum Description:Colorless to light yellow liquid Manufacture Standards:Enterprise Standard TESTING ITEMS

High Quality Ethyl Propiolate in stock

Cas:623-47-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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,

High purity Ethyl propiolate

Cas:623-47-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Minstar Chemical Co., Ltd

Ethyl propiolate Chemical Properties Melting point 9°C Boiling point 120 °C (lit.) density 0.968 g/mL at 25 °C (lit.) refractive index n20/D 1.412(lit.) Fp 74 °F storage temp. 2-8°C solubility Miscible

Ethyl Propiolate

Cas:623-47-2

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

Ethyl propiolate

Cas:623-47-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

Ethyl acetylenecarboxylate

Cas:623-47-2

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Synthetic route

ethanol
64-17-5

ethanol

Propiolic acid
471-25-0

Propiolic acid

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

Conditions
ConditionsYield
With sulfuric acid; trimethyl orthoformate In dichloromethane at 40℃; for 24h; Reagent/catalyst;86.7%
boron trifluoride diethyl etherate 1.) reflux, 1.5 h; 2.) rt., 4 h.;60%
With sulfuric acid for 24h; Reflux;36%
Ethyl half ester of acetylenedicarboxylic acid
38391-86-5

Ethyl half ester of acetylenedicarboxylic acid

toluene
108-88-3

toluene

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

Conditions
ConditionsYield
at 100℃; Zeitlicher Verlauf der thermischen Zersetzung;
(E)-4-(Triphenyl-λ5-phosphanylidene)-pent-2-enedioic acid diethyl ester
119930-16-4

(E)-4-(Triphenyl-λ5-phosphanylidene)-pent-2-enedioic acid diethyl ester

A

ethyl (triphenylphosphoranylidene)acetate
1099-45-2

ethyl (triphenylphosphoranylidene)acetate

B

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

Conditions
ConditionsYield
equil. react.;
Ethyl half ester of acetylenedicarboxylic acid
38391-86-5

Ethyl half ester of acetylenedicarboxylic acid

water
7732-18-5

water

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

Conditions
ConditionsYield
at 100℃; Zeitlicher Verlauf der thermischen Zersetzung;
Mesitol
527-60-6

Mesitol

chloroformic acid ethyl ester
541-41-3

chloroformic acid ethyl ester

Propiolic acid
471-25-0

Propiolic acid

A

Trifluoressigsaeure-(2,4,6-trimethyl-phenylester)
1737-55-9

Trifluoressigsaeure-(2,4,6-trimethyl-phenylester)

B

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

Conditions
ConditionsYield
Stage #1: Propiolic acid With lithium hydride In tetrahydrofuran at 20℃; for 18h; Metallation;
Stage #2: chloroformic acid ethyl ester In tetrahydrofuran at -10 - 20℃; Acylation;
Stage #3: Mesitol In tetrahydrofuran at 20 - 45℃; Substitution;
chloroformic acid ethyl ester
541-41-3

chloroformic acid ethyl ester

sodium 2,4,6-trimethylphenoxide
51114-00-2

sodium 2,4,6-trimethylphenoxide

Propiolic acid
471-25-0

Propiolic acid

A

Trifluoressigsaeure-(2,4,6-trimethyl-phenylester)
1737-55-9

Trifluoressigsaeure-(2,4,6-trimethyl-phenylester)

B

carbonic acid ethyl ester 2,4,6-trimethyl-phenyl ester

carbonic acid ethyl ester 2,4,6-trimethyl-phenyl ester

C

(E)-3-(2,4,6-Trimethyl-phenoxy)-acrylic acid 2,4,6-trimethyl-phenyl ester

(E)-3-(2,4,6-Trimethyl-phenoxy)-acrylic acid 2,4,6-trimethyl-phenyl ester

D

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

Conditions
ConditionsYield
Stage #1: Propiolic acid With lithium hydride In tetrahydrofuran at 20℃; for 18h; Metallation;
Stage #2: chloroformic acid ethyl ester In tetrahydrofuran at -10 - 20℃; Acylation;
Stage #3: sodium 2,4,6-trimethylphenoxide In tetrahydrofuran at 20 - 45℃; Substitution;
methyl propargyl alcohol
764-01-2

methyl propargyl alcohol

diethylazodicarboxylate
1972-28-7

diethylazodicarboxylate

phenol
108-95-2

phenol

A

but-2-ynyloxybenzene
13610-09-8

but-2-ynyloxybenzene

B

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

Conditions
ConditionsYield
With triphenylphosphine In tetrahydrofuran; benzeneA 2.18 g (70%)
B n/a
propargyl alcohol
107-19-7

propargyl alcohol

diethylazodicarboxylate
1972-28-7

diethylazodicarboxylate

5-bromo-2-[(4-hydroxy-benzenesulfonyl)-methyl-amino]-3-methyl-benzoic acid methyl ester
287108-60-5

5-bromo-2-[(4-hydroxy-benzenesulfonyl)-methyl-amino]-3-methyl-benzoic acid methyl ester

A

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

B

5-bromo-3-methyl-2-[methyl-(4-prop-2-ynyloxy-benzenesulfonyl)-amino]-benzoic acid methyl ester
287108-61-6

5-bromo-3-methyl-2-[methyl-(4-prop-2-ynyloxy-benzenesulfonyl)-amino]-benzoic acid methyl ester

Conditions
ConditionsYield
With triphenylphosphine In tetrahydrofuran; benzeneA n/a
B 0.389 g (71%)
(hydrotris(3,5-diisopropylpyrazolyl)borato)CoCCC(O)OCH2CH3
461695-81-8

(hydrotris(3,5-diisopropylpyrazolyl)borato)CoCCC(O)OCH2CH3

water
7732-18-5

water

A

[Co(hydrotris(3,5-diisopropyl-1-pyrazolyl)borate)]2(OH)2

[Co(hydrotris(3,5-diisopropyl-1-pyrazolyl)borate)]2(OH)2

B

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

Conditions
ConditionsYield
In not given
chloroformic acid ethyl ester
541-41-3

chloroformic acid ethyl ester

acetylene
74-86-2

acetylene

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

Conditions
ConditionsYield
Stage #1: acetylene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.25h; Inert atmosphere;
Stage #2: chloroformic acid ethyl ester In tetrahydrofuran; hexane at -78℃; for 8h; Inert atmosphere;
Stage #1: acetylene With n-butyllithium In tetrahydrofuran; hexane at -78℃; for 0.5h; Inert atmosphere;
Stage #2: chloroformic acid ethyl ester In tetrahydrofuran; hexane at -78 - 20℃; for 1.5h; Inert atmosphere;
glyoxylic acid ethyl ester
924-44-7

glyoxylic acid ethyl ester

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

Conditions
ConditionsYield
With C7H13N2O4P; potassium carbonate In methanol at 20℃; Inert atmosphere;
piperidine
110-89-4

piperidine

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl (E)-3-(piperidin-1-yl)acrylate
81239-00-1

ethyl (E)-3-(piperidin-1-yl)acrylate

Conditions
ConditionsYield
at 20℃; for 0.0333333h; Michael addition;100%
With water at 20℃; for 0.0833333h; optical yield given as %de; stereoselective reaction;96%
With benzene
propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

2-propynamide
7341-96-0

2-propynamide

Conditions
ConditionsYield
With ammonia at -78 - 20℃; for 5h;100%
With ammonia at -55℃; for 9h;83%
With ammonium hydroxide at -10℃; for 1h; Inert atmosphere;74%
pyrrolidine
123-75-1

pyrrolidine

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl (E)-3-(pyrrolidin-1-yl)acrylate
65651-80-1

ethyl (E)-3-(pyrrolidin-1-yl)acrylate

Conditions
ConditionsYield
In toluene at 20℃; for 16h;100%
With water In neat (no solvent) at 20℃; for 0.166667h; Michael Addition; Sealed tube; Green chemistry; stereoselective reaction;99%
With water at 20℃; for 0.0833333h; optical yield given as %de; stereoselective reaction;91%
morpholine
110-91-8

morpholine

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl (E)-3-(morpholin-4-yl)acrylate
81239-01-2

ethyl (E)-3-(morpholin-4-yl)acrylate

Conditions
ConditionsYield
at 20℃; for 0.0333333h; Michael addition;100%
With water In neat (no solvent) at 20℃; for 0.166667h; Michael Addition; Sealed tube; Green chemistry; stereoselective reaction;99%
With water at 20℃; for 0.0833333h; optical yield given as %de; stereoselective reaction;94%
2-methoxy-phenylamine
90-04-0

2-methoxy-phenylamine

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl 3-<(2-methoxyphenyl)amino>acrylate
115607-78-8

ethyl 3-<(2-methoxyphenyl)amino>acrylate

Conditions
ConditionsYield
In ethanol for 3h; Heating;100%
ethanol
64-17-5

ethanol

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl 3,3-diethoxypropanoate
10601-80-6

ethyl 3,3-diethoxypropanoate

Conditions
ConditionsYield
With potassium for 12h;100%
With copper(II) sulfate for 24h; Heating / reflux;37%
1-Azidoadamantane
24886-73-5

1-Azidoadamantane

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

1-(1-adamantyl)-4-(ethyoxycarbonyl)-1H-1,2,3-triazole
76599-43-4

1-(1-adamantyl)-4-(ethyoxycarbonyl)-1H-1,2,3-triazole

Conditions
ConditionsYield
With tetrakis(acetonitrile)copper(I)tetrafluoroborate; tris[(1-benzyl-1H-1,2,3-triazol-4yl)methyl]amine In tetrahydrofuran at 20℃; for 24h; Inert atmosphere;100%
With 2,6-dimethylpyridine In water at 20℃; for 8h; Huisgen 1,3-dipolar cycloaddition; regioselective reaction;96%
With C22H28CuIN2 In neat (no solvent) at 20℃; for 72h;81%
In toluene at 110℃; for 50h;77%
ethyl N-hydroxybenzimidate
7340-17-2

ethyl N-hydroxybenzimidate

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl N-<(2'-ethoxycarbonylvinyl)oxy>benzimidate
139172-68-2, 144946-63-4

ethyl N-<(2'-ethoxycarbonylvinyl)oxy>benzimidate

Conditions
ConditionsYield
With triethylamine for 0.166667h; Ambient temperature;100%
C15H17N3O4
135907-85-6

C15H17N3O4

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

C20H23N3O6
135907-91-4

C20H23N3O6

Conditions
ConditionsYield
In acetonitrile for 24h; Ambient temperature;100%
propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl (Z)-3-iodopropenoate
31930-36-6

ethyl (Z)-3-iodopropenoate

Conditions
ConditionsYield
With acetic acid; sodium iodide at 70℃; for 16h; Inert atmosphere;100%
With acetic acid; sodium iodide at 70℃; for 16h; Inert atmosphere;99%
With acetic acid; sodium iodide98%
phosphonic acid diethyl ester
762-04-9

phosphonic acid diethyl ester

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl β,β-bis(diethoxyphosphoryl)propionate
1112-29-4

ethyl β,β-bis(diethoxyphosphoryl)propionate

Conditions
ConditionsYield
With aluminum oxide; potassium hydroxide In dichloromethane at 20℃; for 0.0833333h;100%
With sodium hexamethyldisilazane 1) THF, -50 deg C, 15 min; 2) THF, -50 deg C, 10 min; Yield given. Multistep reaction;
With aluminum oxide; potassium hydroxide at 20℃; for 0.0833333h; Yield given;
propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl 1H-pyrazole-3-carboxylate
5932-27-4

ethyl 1H-pyrazole-3-carboxylate

Conditions
ConditionsYield
In diethyl ether Ambient temperature;100%
(S)-2-[(4-methoxybenzyloxy)methyl]oxirane
80910-01-6, 108836-41-5, 134733-19-0, 144069-33-0

(S)-2-[(4-methoxybenzyloxy)methyl]oxirane

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl (5S)-5-hydroxy-6-(4-methoxybenzyloxy)hex-2-ynoate
302554-85-4

ethyl (5S)-5-hydroxy-6-(4-methoxybenzyloxy)hex-2-ynoate

Conditions
ConditionsYield
With n-butyllithium; boron trifluoride diethyl etherate In tetrahydrofuran at -78℃; for 0.5h; Ring cleavage;100%
Stage #1: propynoic acid ethyl ester With n-butyllithium In tetrahydrofuran; hexane at -90℃; for 0.333333h;
Stage #2: (S)-2-[(4-methoxybenzyloxy)methyl]oxirane With boron trifluoride diethyl etherate In tetrahydrofuran; hexane at -90 - 0℃;
100%
propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

1-[(2R,3S,6R,7S)-3-Hydroxy-6-(4-methoxy-benzyloxy)-7-(4-methoxy-benzyloxymethyl)-2-methyl-oxepan-2-yl]-propan-2-one
370884-58-5

1-[(2R,3S,6R,7S)-3-Hydroxy-6-(4-methoxy-benzyloxy)-7-(4-methoxy-benzyloxymethyl)-2-methyl-oxepan-2-yl]-propan-2-one

(E)-3-[(2R,3S,6R,7S)-6-(4-Methoxy-benzyloxy)-7-(4-methoxy-benzyloxymethyl)-2-methyl-2-(2-oxo-propyl)-oxepan-3-yloxy]-acrylic acid ethyl ester
370884-60-9

(E)-3-[(2R,3S,6R,7S)-6-(4-Methoxy-benzyloxy)-7-(4-methoxy-benzyloxymethyl)-2-methyl-2-(2-oxo-propyl)-oxepan-3-yloxy]-acrylic acid ethyl ester

Conditions
ConditionsYield
With 4-methyl-morpholine In dichloromethane at 20℃;100%
With 4-methyl-morpholine In dichloromethane at 30℃; for 16h;100%
propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

1-(benzyloxy)-3-(phenyltellanyl)propan-2-ol
396714-80-0

1-(benzyloxy)-3-(phenyltellanyl)propan-2-ol

(E)-3-(1-benzyloxymethyl-2-phenyltellurenyl-ethoxy)-acrylic acid ethyl ester
396714-84-4

(E)-3-(1-benzyloxymethyl-2-phenyltellurenyl-ethoxy)-acrylic acid ethyl ester

Conditions
ConditionsYield
With 4-methyl-morpholine In dichloromethane at 20℃; hetero-Michael addition reaction;100%
With 4-methyl-morpholine In dichloromethane at 20℃; hetero-Michael addition;80%
1-Phenyl-3-buten-1-ol
80735-94-0

1-Phenyl-3-buten-1-ol

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl (E)-3-(1-phenyl-3-buten-1-yl)oxy-2-propenoate

ethyl (E)-3-(1-phenyl-3-buten-1-yl)oxy-2-propenoate

Conditions
ConditionsYield
Stage #1: propynoic acid ethyl ester With triethylamine In diethyl ether for 0.25h; Inert atmosphere;
Stage #2: 1-Phenyl-3-buten-1-ol In diethyl ether for 28h; Inert atmosphere;
100%
Stage #1: propynoic acid ethyl ester With triethylamine In diethyl ether at 20℃; for 0.166667h;
Stage #2: 1-Phenyl-3-buten-1-ol In diethyl ether at 20℃; for 48h;
97%
1-benzylidene-4,4-dimethyl-3-oxopyrazolidin-1-ium-2-ide
606123-85-7

1-benzylidene-4,4-dimethyl-3-oxopyrazolidin-1-ium-2-ide

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

6,6-dimethyl-5-oxo-1-phenyl-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazole-2-carboxylic acid ethyl ester

6,6-dimethyl-5-oxo-1-phenyl-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazole-2-carboxylic acid ethyl ester

Conditions
ConditionsYield
With copper(l) iodide; phosphaferrocene-4-(S)-i-Pr-oxazoline; N-Methyldicyclohexylamine In dichloromethane at 20℃; for 20h;100%
2-(dimethylamino)-4-oxo-4H-pyrido<1,2-a>pyrimidine-3-carbaldehyde
111680-71-8

2-(dimethylamino)-4-oxo-4H-pyrido<1,2-a>pyrimidine-3-carbaldehyde

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

C15H15NO4

C15H15NO4

Conditions
ConditionsYield
Stage #1: 2-(dimethylamino)-4-oxo-4H-pyrido<1,2-a>pyrimidine-3-carbaldehyde; phenylglycine methyl ester In toluene at 85℃; for 1h;
Stage #2: propynoic acid ethyl ester In toluene at 85℃; for 3.5h;
Stage #3: With pyridinium p-toluenesulfonate In toluene Further stages.;
100%
2-methoxy-phenylamine
90-04-0

2-methoxy-phenylamine

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl 3-(2-methoxyphenylamino)acrylate
142781-90-6

ethyl 3-(2-methoxyphenylamino)acrylate

Conditions
ConditionsYield
In ethanol100%
bis(pinacol)diborane
73183-34-3

bis(pinacol)diborane

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl (2E)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)acrylate
1009307-13-4

ethyl (2E)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)acrylate

Conditions
ConditionsYield
Stage #1: bis(pinacol)diborane With 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; copper(l) chloride; sodium t-butanolate In tetrahydrofuran at 20℃; for 0.166667h; Schlenk technique; Inert atmosphere;
Stage #2: propynoic acid ethyl ester In tetrahydrofuran; methanol Sealed tube; Schlenk technique; Inert atmosphere;
100%
Stage #1: bis(pinacol)diborane With 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; copper(l) chloride; sodium t-butanolate In tetrahydrofuran at 25℃; for 0.166667h; Schlenk technique; Inert atmosphere;
Stage #2: propynoic acid ethyl ester In tetrahydrofuran; methanol at 25℃; Schlenk technique; Inert atmosphere; Sealed tube;
95%
Stage #1: bis(pinacol)diborane With 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; copper(l) chloride; sodium t-butanolate In tetrahydrofuran at 25℃; for 0.166667h; Inert atmosphere;
Stage #2: propynoic acid ethyl ester In tetrahydrofuran; methanol at 25℃; for 11.4h; Inert atmosphere;
85.3%
C13H16O4
1021700-66-2

C13H16O4

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

C18H22O6

C18H22O6

Conditions
ConditionsYield
With 4-methyl-morpholine at 20℃; for 12h; Michael addition; Inert atmosphere;100%
trans-Crotonaldehyde
123-73-9

trans-Crotonaldehyde

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

C9H12O3

C9H12O3

Conditions
ConditionsYield
Stage #1: propynoic acid ethyl ester With n-butyllithium; diisopropylamine In tetrahydrofuran; hexane at -78℃; for 0.5h;
Stage #2: trans-Crotonaldehyde In tetrahydrofuran; hexane at -78℃; for 1.5h;
100%
2-azidoethanol
1517-05-1

2-azidoethanol

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

1-(2-hydroxyethyl)-4-ethoxycarbonyl-1H-1,2,3-triazole

1-(2-hydroxyethyl)-4-ethoxycarbonyl-1H-1,2,3-triazole

Conditions
ConditionsYield
With supported Cu(I) bis-2-pyridiylamine functionalized silica Si-BPA*Cu+ In water; tert-butyl alcohol for 1h; Microwave irradiation; regiospecific reaction;100%
With copper(II) loaded mesoporous SBA-15 In dichloromethane at 20℃; Huisgen Cycloaddition; regioselective reaction;64%
pyrrolidine
123-75-1

pyrrolidine

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl-3-(pyrrolidin-1-yl)prop-2-enoate
53927-12-1

ethyl-3-(pyrrolidin-1-yl)prop-2-enoate

Conditions
ConditionsYield
In tetrahydrofuran at 10 - 25℃; for 1h;100%
In acetonitrile at 20℃; for 10h;98%
In acetonitrile at 20℃; Inert atmosphere;
In acetonitrile at 20℃;9.47 g
N-benzyl-α-diazoacetamide
105310-97-2

N-benzyl-α-diazoacetamide

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

ethyl 5-(benzylcarbamoyl)-1H-pyrazole-3-carboxylate

ethyl 5-(benzylcarbamoyl)-1H-pyrazole-3-carboxylate

Conditions
ConditionsYield
In water; acetonitrile at 22℃; under 760.051 Torr;100%
C31H36Cl2O8S

C31H36Cl2O8S

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

C36H42Cl2O10S

C36H42Cl2O10S

Conditions
ConditionsYield
With 4-methyl-morpholine In dichloromethane at 0 - 20℃; for 4h;100%
C10H16N2O4
95239-02-4

C10H16N2O4

2-(1-methyl-1H-indol-3-yl)ethylamine
7518-21-0

2-(1-methyl-1H-indol-3-yl)ethylamine

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

4-ethyl 3-methyl 2-methyl-1-[2-(1-methyl-1H-indol-3-yl)ethyl]-1H-pyrrole-3,4-dicarboxylate

4-ethyl 3-methyl 2-methyl-1-[2-(1-methyl-1H-indol-3-yl)ethyl]-1H-pyrrole-3,4-dicarboxylate

Conditions
ConditionsYield
Stage #1: 2-(1-methyl-1H-indol-3-yl)ethylamine; propynoic acid ethyl ester In dichloromethane at 20℃;
Stage #2: C10H16N2O4 In dichloromethane; toluene for 2h; Reflux;
Stage #3: With trifluoroacetic acid In dichloromethane; toluene Reflux;
100%
propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

triethyl benzene-1,3,5-tricarboxylate
4105-92-4

triethyl benzene-1,3,5-tricarboxylate

Conditions
ConditionsYield
With chloro-trimethyl-silane In butan-1-ol; benzene at 40℃; for 8h; regioselective reaction;99.1%
With ClO4 In methanol Ambient temperature;87%
With piperazine; LACTIC ACID In N,N-dimethyl-formamide at 90℃; for 12h;78%
propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

(Z)-ethyl 2,3-dibromoprop-2-enoate
26631-66-3

(Z)-ethyl 2,3-dibromoprop-2-enoate

Conditions
ConditionsYield
With bromine In tetrachloromethane at 70℃; for 0.5h;99%
With bromine In tetrachloromethane at 70℃; for 2.5h;90%
With bromine In tetrachloromethane at 70℃; for 1.5h;83%
With bromine In tetrachloromethane Irradiation;
With bromine In tetrachloromethane at 70℃; for 1.5h; Yield given;
Phenyl azide
622-37-7

Phenyl azide

propynoic acid ethyl ester
623-47-2

propynoic acid ethyl ester

1-phenyl-1H-[1,2,3]triazole-4-carboxylic acid ethyl ester
4915-97-3

1-phenyl-1H-[1,2,3]triazole-4-carboxylic acid ethyl ester

Conditions
ConditionsYield
With C30H23Cl2N7O4Ru(1+)*Cl(1-) In water at 23℃; for 0.0666667h; Huisgen Cycloaddition; Sonication; Green chemistry; regioselective reaction;99%
In ethanol for 20h; Heating;95%
With copper(I) oxide In water at 25℃; for 0.0833333h; Inert atmosphere;95%

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