Highly enantioselective synthesis of γ-, δ-, and ε-chiral 1-alkanols via Zr-catalyzed asymmetric carboalumination of alkenes (ZACA)–Cu- or Pd-catalyzed cross-coupling
Author(s) -
Shiqing Xu,
Akimichi Oda,
Hirofumi Kamada,
Eiichi Negishi
Publication year - 2014
Publication title -
proceedings of the national academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.1401187111
Subject(s) - enantioselective synthesis , synthon , chemistry , catalysis , alkene , enantiomer , enantiomeric excess , organic chemistry , aryl , combinatorial chemistry , absolute configuration , alkyl
Significance Chirality plays a vital role in chemical, biological, pharmaceutical, and material sciences. The preparation of enantiomerically pure compounds is a very important and challenging area. In this paper, we developed a highly enantioselective (≥99%ee ) and widely applicable method for the synthesis of various γ- and more-remotely chiral alcohols, many of which cannot be satisfactorily prepared by other existing methods, via the ZACA/oxidation–lipase-catalyzed acetylation–Cu- or Pd-catalyzed cross-coupling from terminal alkenes. We also demonstrated MαNP ester analysis is a convenient and powerful method for determining the enantiomeric purities of δ- and ε-chiral primary alkanols. This finding is anticipated to shed light on the relatively undeveloped field of determination of enantiomeric purity and/or absolute configuration of remotely chiral primary alcohols.
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