New chiral catalysts: synthesis and fragmentation pattern of C9-o-silanized cinchonidines

详细信息    查看全文

• 作者：Imre Bucsi ; Szabolcs Cser¨¦nyi ; K¨¢roly Felf?ldi and Mih¨¢ly Bart¨®k
• 关键词：mass spectrometry ; Cinchonidine ; silyl ethers ; chiral catalysts
• 刊名：Reaction Kinetics and Catalysis Letters
• 出版年：2006
• 出版时间：April 2006
• 年：2006
• 卷：87
• 期：2
• 页码：281-289
• 全文大小：119 KB

文摘

We synthesized C9-O-silyl ethers of cinchonidine and dihydrocinchonidine (1-8), seven of which have not been known before. The structures of the compounds were verified by ESI-ion-trap MS and 1H-NMR. Fragmentation of silyl ethers containing Si-phenyl bonds was studied for the first time. The compounds obtained will be utilized as chiral catalysts of certain asymmetric syntheses.</o:p>