99512-42-2Relevant articles and documents
DBU-Catalyzed Ring-Opening and Retro-Claisen Fragmentation of Dihydropyranones
Axelsson, Anton,Hammarvid, Emmelie,Rahm, Martin,Sundén, Henrik
, p. 5436 - 5444 (2020/08/26)
We present a general protocol for the formal Michael addition of acetone to α,β-unsaturated esters and amides, a transformation difficult to perform using current methods. The protocol comprises of an amidine catalyzed relay ring-opening and fragmentation
Highly regioselective addition of an ester enolate equivalent to α,β-unsaturated ketones: Selective formation of both isomers derived from 1,2- and 1,4-additions using α-stannyl ester with additives
Yasuda,Matsukawa,Okamoto,Sako,Kitahara,Baba
, p. 2149 - 2150 (2007/10/03)
The reaction of α-stannyl ester with α,β-unsaturated ketones in the presence of stannous chloride (SnCl2) and chlorosilanes (Me3SiCl or Me2SiCl2) gave 1,2- and 1,4-addition products, respectively.
3-Substituted-γ-butyrolactones from 5-Trimethylsilyl-2-cyclohexenone. Synthesis of (-)-Enterolactone
Asaoka, Morio,Fujii, Naoaki,Shima, Kunihisa,Takei, Hisashi
, p. 805 - 808 (2007/10/02)
1,4-Adducts of 5-trimethylsilyl-2-cyclohexenone (1) with Grignard reagents were converted to various hexanoate derivatives and γ-butyrolactones.Starting from optically pure 1, (-)-enterolactone (Factor X) was synthesized.