Enantioselective Ketone Hydroacylation Using Noyori’s Transfer Hydrogenation Catalyst
作者:Stephen K. Murphy、Vy M. Dong
DOI:10.1021/ja4021974
日期:2013.4.17
An enantioselectiveketone hydroacylation enables the direct preparation of lactones from keto alcohols. The alcohol is oxidized in situ to an aldehyde, obviating the need to prepare sensitive keto aldehyde substrates. Noyori's asymmetric transferhydrogenationcatalyst was applied to address challenges of reactivity, chemoselectivity, and enantioselectivity.
Audin, Patrick; Doutheau, Alain; Gore, Jacques, Bulletin de la Societe Chimique de France, 1984, vol. 2, # 7-8, p. 297 - 306
作者:Audin, Patrick、Doutheau, Alain、Gore, Jacques
DOI:——
日期:——
Preparation d'α-alcenyl-2 tetrahydropyrannes par cyclisation d'alcohols δ-alleniques.
作者:Patrick Audin、Alain Doutheau、Jacques Gore
DOI:10.1016/s0040-4039(00)85594-x
日期:1982.1
An efficient Synthesis of Acetylenic ?- and ?-Hydroxy Ketones, ?- and ?-keto acids, and ?- diketones via addition of 1-alkinyllithium compounds to ?- and ?-lactones
作者:Christine Wedler、Hans Schick
DOI:10.1002/prac.19933350503
日期:——
2-Hydroxy-6-alkyn-5-ones 3, 1-hydroxy-5-alkyn-4-ones 4, and 1-hydroxy-6-alkyn-5-ones 5 are conveniently obtained in exellent yields through a highly selective monoaddition of an 1-alkynyllithium compound 2 to gamma-valerolactone (1 a), gamma-butyrolactone (1 b) or delta-valerolactone (1 c). They are oxidized by pyridinium dichromate or Jones reagent to the corresponding acetylenic 1,4-diketones 6, 4-oxo carboxylic acids 7, and 5-oxo carboxylic acids 8, respectively.