90366-21-5Relevant articles and documents
A Chiral Electrophilic Selenium Catalyst for Highly Enantioselective Oxidative Cyclization
Kawamata, Yu,Hashimoto, Takuya,Maruoka, Keiji
, p. 5206 - 5209 (2016/05/19)
Chiral electrophilic selenium catalysts have been applied to catalytic asymmetric transformations of alkenes over the past two decades. However, highly enantioselective reactions with a broad substrate scope have not yet been developed. We report the first successful example of this reaction employing a catalyst based on a rigid indanol scaffold, which can be easily synthesized from a commercially available indanone. The reaction efficiently converts β,γ-unsaturated carboxylic acids into various enantioenriched γ-butenolides under mild conditions.
A facile solid-phase synthesis of substituted 2(5H)-furanones with sulfone traceless linker
Sheng, Shou-Ri,Huang, Pei-Gang,Zhou, Wei,Luo, Hai-Rong,Lin, Shu-Ying,Liu, Xiao-Ling
, p. 2603 - 2605 (2007/10/03)
A novel solid-phase synthetic method for substituted 2(5H)-furanones with traceless sulfone linker strategy has been developed. The products were obtained in good yields and excellent purities.
A convergent asymmetric synthesis of γ-butenolides
Renard, Marc,Ghosez, Léon A.
, p. 2597 - 2608 (2007/10/03)
The addition of aldehydes to the new enantiomerically pure lithiated sulfoxide-orthoester 13 yielded γ-butenolides of high enantiomeric purities after elimination of phenylsulfinic acid. The cyclocondensation with ketones was less stereoselective. This new asymmetric synthesis of γ-butenolides has been applied to a convergent preparation of the antifungal antibiotic (+)-cerulenin.