Some unexpected reactions involving diphenylketene
Autor: | Stanley M. Roberts, Russell J. Thomas, Robert J. Pryce, Julian O. Williams, Carlos A. Pittol, Rakesh Maurya |
---|---|
Rok vydání: | 1992 |
Předmět: | |
Zdroj: | Journal of the Chemical Society, Perkin Transactions 1. :1617 |
ISSN: | 1364-5463 0300-922X |
DOI: | 10.1039/p19920001617 |
Popis: | Diphenylketene reacted with the 2-azabicyclo[2.2.1]hept-5-enes 5, 6 and 10 by attack on nitrogen to give the piperidones 7, 8 and the cyclopentenols 11 respectively. The same ketene reacted with the cyclohexa-1,3-dienes 16 and 17 to give significant amounts of the [4 + 2] addition products 20 and 21 respectively. The initially formed product from the cycloaddition of the enol ether 23 and diphenylketene is unstable, rearranging to produce the unsaturated ester 24. |
Databáze: | OpenAIRE |
Externí odkaz: |