Synthesis 2012; 44(20): 3145-3151
DOI: 10.1055/s-0031-1291138
practical synthetic procedures
© Georg Thieme Verlag Stuttgart · New York

Efficient Preparation of 1,3-Diol Derivatives with Three Contiguous Stereocenters by an Enantioselective Direct Aldol–Tishchenko Reaction

Tomonori Ichibakase
Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan, Fax: +81(96)3627692   eMail: nakajima@gpo.kumamoto-u.ac.jp
,
Makoto Nakajima*
Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan, Fax: +81(96)3627692   eMail: nakajima@gpo.kumamoto-u.ac.jp
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Publikationsverlauf

Received: 29. Februar 2012

Accepted: 21. März 2012

Publikationsdatum:
29. Juni 2012 (online)


Abstract

1,3-Diol derivatives with three contiguous stereocenters were efficiently prepared by an enantioselective direct aldol–Tishchenko reaction catalyzed by dilithium 3,3′-diphenylbinaphtholate. The reactions of acyclic ketones as aldol donors gave 1,2-syn-1,3-anti-diol derivatives, whereas the reactions of cyclic ketones as aldol donors gave 1,2-anti-1,3-anti-diol derivatives. Sequential aldol–aldol–Tishchenko reactions gave a triol derivative with five consecutive chiral centers.