Blaise reaction: synthesis, skeletal diversification of C(4) substituted 5-ylidenepyrrol-(5H)-ones and the role of the strategically located ester on the reactivity of the nitriles

Autor: Ashiq Hussain Padder, H. Surya Prakash Rao
Rok vydání: 2020
Předmět:
Zdroj: New Journal of Chemistry. 44:9010-9017
ISSN: 1369-9261
1144-0546
Popis: We have achieved a simple and convenient synthesis of several C(4) substituted 5-ylidenepyrrol-(5H)-ones from 3-aryl/heteroaryl/alkyl 3-cyanopropionates and ethyl/methyl bromoacetates via a useful variation of the classical Blaise reaction. The products were further transformed to useful small organic molecules (SOMs). Studies on the reactivity of nitriles via intra and inter-molecular competition experiments showed that anchimeric assistance from the neighbouring and strategically located ester is crucial for higher reactivity of the nitrile in the 3-cyanopropionates towards the Blaise reaction.
Databáze: OpenAIRE