312904-59-9Relevant articles and documents
Asymmetric Grignard Synthesis of Tertiary Alcohols through Rational Ligand Design
Bieszczad, Bartosz,Gilheany, Declan G.
supporting information, p. 4272 - 4276 (2017/04/03)
A simple, general and practical method is reported for highly enantioselective construction of tertiary alcohols through the direct addition of organomagnesium reagents to ketones. Discovered by rational ligand design based on a mechanistic hypothesis, it has an unprecedented broad scope. It utilizes a new type of chiral tridentate diamine/phenol ligand that is easily removed from the reaction mixture. It is exemplified by application to a formal asymmetric synthesis (>95:5 d.r.) of vitamin E.
Catalytic asymmetric addition of alkylzinc and functionalized alkylzinc reagents to ketones
Jeon, Sang-Jin,Li, Hongmei,Garcia, Celina,LaRochelle, Lynne K.,Walsh, Patrick J.
, p. 448 - 455 (2007/10/03)
(Chemical Equation Presented) We describe our full report of the catalytic asymmetric addition of simple and functionalized dialkylzinc reagents to a broad range of saturated ketones and enones. The functionalized organozinc reagents contain esters, silyl
A practical catalytic asymmetric addition of alkyl groups to ketones
Garcia, Celina,LaRochelle, Lynne K.,Walsh, Patrick J.
, p. 10970 - 10971 (2007/10/03)
Many catalysts will promote the asymmetric addition of alkylzinc reagents to aldehydes. In contrast, there are no reports of additions to ketones that are both general and highly enantioselective. We describe herein a practical catalytic asymmetric additi
