A High-efficiency Preparation,Properties and Structure of (R,S)- and (S,S)-Pyrrolidine-2-carboxylic Acid 3,5-Dioxa-4-boracyclohepta[2,1-a;3,4-a′]dinaphthalen-4-yl Esters  

作　　者：单自兴 刘思敏 刘德军 

机构地区：[1]Department of Chemistry

出　　处：《Chinese Journal of Chemistry》2003年第10期1373-1377,共5页中国化学（英文版）

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina (No .29972033)andtheKeyScienceResearchFoundationofHubeiProvince (No .98IP13 0 5 )

摘　　要：A highly efficient preparative procedure for ( R,S ) and ( S,S ) pyrrolidine 2 carboxylic acid 3,5 dioxa 4 boracyclohepta[2,1 a ;3,4 a ′]dinaphthalen 4 yl esters [namely ( R,S ) BNBAP and ( S,S ) BNBAP] is described and the crystal structure of ( R,S ) BNBAP was obtained. The data indicate that ( R,S ) BNBAP is a spirocyclic inner borate salt with almost normal tetrahedral configuration. This structural form may be the basic reason for their high chemical, optical and thermodynamic stability.A highly efficient preparative procedure for ( R,S ) and ( S,S ) pyrrolidine 2 carboxylic acid 3,5 dioxa 4 boracyclohepta[2,1 a ;3,4 a ′]dinaphthalen 4 yl esters [namely ( R,S ) BNBAP and ( S,S ) BNBAP] is described and the crystal structure of ( R,S ) BNBAP was obtained. The data indicate that ( R,S ) BNBAP is a spirocyclic inner borate salt with almost normal tetrahedral configuration. This structural form may be the basic reason for their high chemical, optical and thermodynamic stability.

关 键 词：chiral inner borate salt PREPARATION property crystal structure 

分 类 号：O621[理学—有机化学]