Enhydrazine, 28. Darstellung und Umwandlung zweier isomerer Pyrazoline

✍ Scribed by Sucrow, Wolfgang ;Rau, Dhananjay ;Bredthauer, Gerhard

• Publisher: Wiley (John Wiley & Sons)
• Year: 1980
• Tongue: English
• Weight: 172 KB
• Volume: 113
• Category: Article
• ISSN: 0009-2940
• DOI: 10.1002/cber.19801130537

✦ Synopsis

Enehydrazines, 28. Preparation and Transformation of two Isomeric Pyrazolines

The formerly prepared pyrazolidines 1a, b are dehydrogenated to the title compounds 2a, b. Compound 2a epimerizes to 2b which eliminates methyl acetate to give the pyrazole 3.