Pd-catalyzed 5-endo-trig-type cyclization of β,γ-unsaturated carbonyl compounds: an efficient ring closing reaction to give γ-butenolides and 3-pyrrolin-2-ones†,10.1039/C0CC02352C

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Lactoyl-CoA 全氟丁基戊烷白叶藤碱全氟己基辛烷新白叶藤碱壳寡糖特色专题-生物多肽

Pd-catalyzed 5-endo-trig-type cyclization of β,γ-unsaturated carbonyl compounds: an efficient ring closing reaction to give γ-butenolides and 3-pyrrolin-2-ones†

Gan B. Bajracharya,Priti S. Koranne,Rashid N. Nadaf,Randa Kassem Mohamed Gabr,Kazuhiro Takenaka,Shinobu Takizawa,Hiroaki Sasai

Chemical Communications Pub Date : 10/22/2010 00:00:00 , DOI:10.1039/C0CC02352C

Abstract

The 5-endo-trig-type cyclization has been performed using a Pd–bis(isoxazoline) catalyst. The present cyclization of β,γ-unsaturated carbonyl compounds gave γ-butenolides and 3-pyrrolin-2-ones in good to excellent yields.