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综述了手性辅剂樟脑磺内酰胺在不对称共轭加成反应、不对称Diels-Alder反应、不对称1,3-偶极环加成反应、不对称羰基化合物的a-烷基化反应、不对称羟醛缩合反应及胺化反应中的应用研究进展. 相似文献
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Diastereoselective synthesis of (3R,4R)‐4‐acetoxy‐3‐[1′(R)‐tert‐butyldimethylsilyloxyethyl] azetidin‐2‐one (AOSA) using (‐)‐D‐2,10‐camphorsultam as a key and recyclable chiral auxiliary is described. 相似文献
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The asymmetric conjugate addition reaction between 4-fluorophenylmagnesium bromide and various chiral α,β-unsaturated esters and enoylsultam substrates was explored to prepare a key intermediate useful in the preparation of paroxetine. The most selective auxiliary was found to be Oppolzer's (1S)-(−)-camphorsultam. Interestingly, the diastereoselection was opposite to that reported for acyclic enoylsultams. 相似文献
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JianChaoLIU YuSheYANG RuYunJI 《中国化学快报》2005,16(4):430-432
A new method for preparation of the potent hypoglycemic KAD-1229 was developed.The key step of this method is diasteroselective alkylation in high optical purity and good yield by using easily available Oppolzer‘s camphor sultam as chiral auxiliary. 相似文献
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