Synthesis of Tetrasubstituted Ozonides by the Griesbaum Coozonolysis Reaction: Diastereoselectivity and Functional Group Transformations by Post-Ozonolysis Reactions
作者:Yuanqing Tang、Yuxiang Dong、Jean M. Karle、Charles A. DiTusa、Jonathan L. Vennerstrom
DOI:10.1021/jo040171c
日期:2004.9.1
coozonolysis reaction with O-methyl 2-adamantanone oxime and 4-substituted cyclohexanones reveals that the major tetrasubstituted ozonide isomers possess cis configurations, suggesting a preferred axial attack of the carbonyl oxide on the cyclohexanone dipolarophiles. It is evident that these tetrasubstituted ozonides are quite stable to triphenylphosphine, borohydrides, hydrazine, alkyllithiums, Grignard
与O-甲基2-金刚烷酮肟和4-取代的环己酮的格里斯鲍姆共渗分解反应的非对映选择性表明,主要的四取代的臭氧化物异构体具有顺式构型,表明羰基氧化物优选对环己酮双极性亲和剂的轴向攻击。显然,这些四取代的臭氧化物对三苯基膦,硼氢化物,肼,烷基锂,格利雅试剂,硫醇盐和KOH水溶液非常稳定,如胺,醇,酸,酯,醚,硫化物,砜和杂环化合物的合成所示。通过各种臭氧分解后的转化功能化了臭氧化物。