Bulletin of the Chemical Society of Japan p. 3849 - 3850 (1983)
Update date:2022-07-30
Topics:
Yoshida, Hiroshi
Sogame, Shingo
Bando, Shoichi
Nakajima, Shosuke
Ogata, Tsuyoshi
Matsumoto, Kiyoshi
The reaction of diphenylcyclopropenone with R1N=C(R2)X (2) (R1, R2=alkyl, aryl, X=MeO, EtO, MeS, or Me2N) gave 2-pyrrolin-4-one (3) in good yield.The less reactive carboximidothioate (2, R1=4-MeC6H4, R2=Ph, X=MeS) yielded isomeric 3-pyrrolin-2-one together with 3.
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