861660-36-8

Basic information

• Product Name: 1,3-dimethyl-5-(p-methoxyphenyl)ethynylpyrazole-4-carboxylic acid hydrazide
• Synonyms: 1,3-dimethyl-5-(p-methoxyphenyl)ethynylpyrazole-4-carboxylic acid hydrazide
• CAS NO: 861660-36-8
• Molecular Weight: 284.318
• Mol File: 861660-36-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1,3-dimethyl-5-(p-methoxyphenyl)ethynylpyrazole-4-carboxylic acid hydrazide(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-dimethyl-5-(p-methoxyphenyl)ethynylpyrazole-4-carboxylic acid hydrazide(861660-36-8)
• EPA Substance Registry System: 1,3-dimethyl-5-(p-methoxyphenyl)ethynylpyrazole-4-carboxylic acid hydrazide(861660-36-8)

Safety Data

• Hazardous Substances Data: 861660-36-8(Hazardous Substances Data)

Upstream product

• 78703-57-8 1,3-dimethyl-5-iodopyrazole-4-carboxylic acid methyl ester 
• 48121-13-7 copper(I) 4-methoxyphenylacetylenide 
• 861660-35-7 1,3-dimethyl-5-(p-methoxyphenyl)ethynylpyrazole-4-carboxylic acid methyl ester 

Relevant articles and documents

Unexpected results in the heterocyclization of 5-acetylenylpyrazole-4- carboxylic acid hydrazides under the influence of CuCl: Formation of a diazepinone and dehydrodimerization into the corresponding bis(pyrazolo[4,3-d] [1,2]diazepinone)

The simple reaction of cyclization of hydrazides of vic-acetylenylbenzoic and acetylenylpyrazole carboxylic acid can lead to four different compounds: five-membered N-aminolactams, six-membered N-aminolactams, six-membered diazinones and diazepinones, but only the first three have been described. In this paper we report the unexpected formation of a bis(pyrazolo[4,3-d][1,2] diazepinone, the structure of which has been established by X-ray crystallography.