Palladium-Catalyzed Intermolecular Heck-Type Reaction of Epoxides
作者:Shenghan Teng、Malcolm E. Tessensohn、Richard D. Webster、Jianrong Steve Zhou
DOI:10.1021/acscatal.8b02029
日期:2018.8.3
palladium-catalyzed intermolecular Heck-type reaction of both cyclic and acyclic epoxides is reported with tolerance of typical polar groups and acidic protons. Suitable alkenes include styrenes, conjugate dienes, and some electron-deficient olefins. In reactions of aliphatic terminal epoxides, ring opening occurs selectively at terminal positions, and stereocenters of epoxides are fully retained. Mechanistic studies
Allylic Rearrangements. XXIII. The Reaction of the Sodium Derivative of Allylbenzene with Carbonyl Compounds
作者:Tod W. Campbell、William G. Young
DOI:10.1021/ja01204a041
日期:1947.12
Regiospecific synthesis of homoallylic alcohols from tosylhydrazones
作者:Michael F. Lipton、Robert H. Shapiro
DOI:10.1021/jo00401a026
日期:1978.3
Highly regioselective iridium-catalyzed and samarium-promoted coupling of allylic carbonates with ketones: a new approach towards homoallylic alcohols
作者:Wei Liu、Liang Zhang、Weikang Yang、Xiaoming Zhao
DOI:10.1039/c3ra43199a
日期:——
A highlyregioselective Ir-catalyzed and Sm-promoted coupling of allyliccarbonates with ketones has been realized, which provides the homoallylic alcohols in up to 89% yields. This strategy gives a convenient method for the synthesis of liquid crystals with a mono-fluorinated quaternary carbon chain.
N-Heterocyclic Carbene-Catalyzed Hydrosilylation of Styryl and Propargylic Alcohols with Dihydrosilanes
作者:Qiwu Zhao、Dennis P. Curran、Max Malacria、Louis Fensterbank、Jean-Philippe Goddard、Emmanuel Lacôte
DOI:10.1002/chem.201101822
日期:2011.8.29
Reducing alkenes to tears: Addition of structurally diverse N‐heterocyclic carbenes (NHCs) to silicon allows the reduction of propargylic and styryl alcohols through an organocatalyzed silylation/direct hydride transfer tandem reaction (see scheme). Catalytic turnover is enabled by the switch to and from hypervalent silicon. This provides a new synthetic application of NHC–main group element complexes