1-vinyl-1H-pyrazole-4-carboxylic acid(SALTDATA: FREE) synthesis

2synthesis methods

Product Name:1-vinyl-1H-pyrazole-4-carboxylic acid(SALTDATA: FREE)
CAS Number:905307-07-5
Molecular formula:C6H6N2O2
Molecular Weight:138.12

1H-Pyrazole-4-carboxylic acid, 1-(2-chloroethyl)-

1011404-53-7
6 suppliers
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1-vinyl-1H-pyrazole-4-carboxylic acid(SALTDATA: FREE)

905307-07-5
14 suppliers
$220.00/1g

Yield:905307-07-5 90%

Reaction Conditions:

Stage #1: 1-(2-chloroethyl)-4-pyrazolecarboxylic acidwith hydroquinone;potassium hydroxide in water at 100; for 2 h;
Stage #2: with hydrogenchloride in water;

References:

Baltayan;Saakyan;Attaryan;Asratyan [Russian Journal of General Chemistry,2010,vol. 80,# 6,p. 1204 - 1205] Location in patent:experimental part

1-(2-CHLOROETHYL)-1H-PYRAZOLE-4-CARBALDEHYDE

864723-36-4
13 suppliers
$65.00/500mg

905307-07-5
14 suppliers
$220.00/1g

References