Tandem Asymmetric Cyclopropanation/Cope Rearrangement. A Highly Diastereoselective and Enantioselective Method for the Construction of 1,4-Cycloheptadienes
作者:Huw M. L. Davies、Douglas G. Stafford、Brian D. Doan、Jeffrey H. Houser
DOI:10.1021/ja974201n
日期:1998.4.1
rhodium(II) (N-dodecylbenzenesulfonyl)prolinate (Rh2(S-DOSP)4, 1) in the presence of dienes results in a direct and highly enantioselective method for the formation of cis-divinylcyclopropanes. Combination of this process with a subsequent Cope rearrangement results in a highly enantioselective synthesis of a variety of cycloheptadienes containing multiple stereogenic centers.
在二烯存在下,通过铑 (II) (N-十二烷基苯磺酰基) 脯氨酸 (Rh2(S-DOSP)4, 1) 分解乙烯基重氮乙酸酯,可以直接且高度对映选择性地形成顺式二乙烯基环丙烷。该过程与随后的 Cope 重排相结合,导致多种含有多个立体中心的环庚二烯的高度对映选择性合成。
Asymmetric synthesis of 1,4-cycloheptadienes and bicyclo[3.2.1]octa-2,6-dienes by rhodium(II) N-(p-(tert-butyl)phenylsulfonyl)prolinate catalyzed reactions between vinyldiazomethanes and dienes
作者:Huw M.L. Davies、Zhi-Qiang Peng、Jeffrey H. Houser
DOI:10.1016/0040-4039(94)88394-7
日期:1994.11
Rhodium(II) (S)-(N-p(tertbutyl)phenylsulfonyl)prolinate catalyzed decomposition of vinyldiazomethanes in the presence of dienes results in a tandem cyclopropanation/Cope rearrangement, leading to a general and enantioselective approach for the construction of seven-membered carbocycles.
[EN] ENANTIOSELECTIVE SYNTHESIS OF SEVEN-MEMBERED CARBOCYCLES AND TROPANES<br/>[FR] SYNTHESE SELECTIVE D'ENANTIOMERES DE CYCLES CARBONES A SEPT ELEMENTS ET DE TROPANES
申请人:WAKE FOREST UNIVERSITY
公开号:WO1996011928A1
公开(公告)日:1996-04-25
(EN) A process of enantioselective synthesis of seven-membered carbocycles in the presence of di-rhodium(II) tetracarboxylate catalysts.(FR) L'invention concerne un précédé de synthèse sélective d'énantiomères de cycles carbonés à sept éléments, en présence des catalyseurs du type di-rhodium (II) tétracarboxylate.
A Tandem Iridium-Catalyzed “Chain-Walking”/Cope Rearrangement Sequence
作者:Heiko Sommer、Tal Weissbrod、Ilan Marek
DOI:10.1021/acscatal.9b00118
日期:2019.3.1
variety of complex annulenes are obtained as single diastereomers starting from cyclopropyl ester derived from simple 1,ω-dienes and alkenyldiazo compounds. Long-range olefin migration over up to 10 positions could be realized and coupled with an efficient Cope rearrangement to yield valuable scaffolds. Various functional groups are well-tolerated, giving rise to densely functionalized products. Furthermore