A Highly Atom Economic, Chemo-, Regio-and Stereoselective Synthesis and Crystal Structure of Novel Spiro-Cyclopentanone
首发时间:2013-03-19
Abstract:The 1,3-dipolar cycloaddition of azomethine ylides derived from acenaphthenequinone and α-amino acid(sarcosine) to a series of 2,5-bis(fluorobenzylidene)cyclopentanones afforded novel spiro-cyclopentanone-pyrrolizines chemo-, regio- and stereoselectively in quantitative yields (95-96%). The crystal structure of one compound containing bis(2,6-difluorobenzyl) (2b) is described. The cyclopentane rings in 2b have an envelope conformation
keywords: 1,3-dipolar cycloaddition Atom economic spiro-cyclopentanone-pyrrolizines X-ray crystallography
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新型螺杂环化合物的原子经济性,化学,区域和立体选择性合成与晶体结构
摘要:The 1,3-dipolar cycloaddition of azomethine ylides derived from acenaphthenequinone and α-amino acid(sarcosine) to a series of 2,5-bis(fluorobenzylidene)cyclopentanones afforded novel spiro-cyclopentanone-pyrrolizines chemo-, regio- and stereoselectively in quantitative yields (95–96%). The crystal structure of one compound containing bis(2,6-difluorobenzyl) (2b) is described. The cyclopentane rings in 2b have an envelope conformation.
关键词: 1,3-dipolar cycloaddition; Atom economic; spiro-cyclopentanone-pyrrolizines; X-ray crystallography
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