Model studies related to CP-225,917: Stereocontrolled generation of the quaternary center

被引:21
作者
Clive, DLJ [1 ]
Zhang, JH [1 ]
机构
[1] Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
aldols; bridgehead chemistry; lactones; oxy-Cope rearrangements;
D O I
10.1016/S0040-4020(99)00712-7
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The enolate derived from ester 15 reacts with diketone 10 stereoselectively (10:1), and the major isomer can be converted into lactone 21. This rearranges in boiling 1,2-dichlorobenzene to afford the tricyclic lactone 22, a model compound which shares with CP-225,917 (1) the bridgehead double bond, the C(5) quaternary center, a C(5) side chain of correct length, and the gamma-lactone subunit. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:12059 / 12068
页数:10
相关论文
共 31 条
[11]   STEREOCHEMISTRY OF THE RUBOTTOM OXIDATION WITH BICYCLIC SILYL ENOL ETHERS - SYNTHESIS AND DIMERIZATION REACTIONS OF BICYCLIC ALPHA-HYDROXY KETONES [J].
JAUCH, J .
TETRAHEDRON, 1994, 50 (45) :12903-12912
[12]  
Kwon OY, 1998, ANGEW CHEM INT EDIT, V37, P1877, DOI 10.1002/(SICI)1521-3773(19980803)37:13/14<1877::AID-ANIE1877>3.0.CO
[13]  
2-2
[14]  
Kwon OY, 1998, ANGEW CHEM INT EDIT, V37, P1880, DOI 10.1002/(SICI)1521-3773(19980803)37:13/14<1880::AID-ANIE1880>3.0.CO
[15]  
2-5
[17]  
Meng DF, 1999, ANGEW CHEM INT EDIT, V38, P1485, DOI 10.1002/(SICI)1521-3773(19990517)38:10<1485::AID-ANIE1485>3.0.CO
[18]  
2-1
[19]  
Nicolaou KC, 1999, ANGEW CHEM INT EDIT, V38, P1676, DOI 10.1002/(SICI)1521-3773(19990601)38:11<1676::AID-ANIE1676>3.0.CO
[20]  
2-T