Hydroboration kinetics. 4. Kinetics and mechanism of the reaction of 9-borabicyclo[3.3.1]nonane with representative haloalkenes. The effect of halogen substitution upon the rate of hydroboration
作者:Roland Bonneau、Michael T. H. Liu、Marie Therese Rayez
DOI:10.1021/ja00197a086
日期:1989.7
Les (alkyl chloro) methylenes sont generes par photolyse eclair des (alkyl-3 chloro-3) diazirines
Les (烷基氯) 亚甲基子类光解 eclair des (烷基-3 氯-3) diazirines
Rhodium-Catalyzed Asymmetric Coupling Reaction of Allylic Ethers with Arylboronic Acids
作者:Hiroyoshi Kiuchi、Dai Takahashi、Kenji Funaki、Tetsuo Sato、Shuichi Oi
DOI:10.1021/ol3019902
日期:2012.9.7
An asymmetric allylic substitution of simple allylic ethers with arylboronicacids in the presence of a rhodium(I)/(R)-DTBM-SEGPHOS catalyst has been developed. The reactions proceeded smoothly at room temperature to give the corresponding branch products with excellent regioselectivities and good to excellent enantioselectivities.