[EN] PROCESSES FOR THE SYNTHESIS OF CHIRAL 1-ALKANOLS<br/>[FR] PROCÉDÉS DE SYNTHÈSE DE 1-ALCANOLS CHIRAUX
申请人:PURDUE RESEARCH FOUNDATION
公开号:WO2015106045A1
公开(公告)日:2015-07-16
The invention relates to highly enantioselective processes for the synthesis of chiral 1-alkanols via Zr-catalyzed asymmetric carboalumination of alkenes.
这项发明涉及通过锆催化的不对称烯烃碳铝化反应合成手性1-烷醇的高对映选择性过程。
PROCESSES FOR THE SYNTHESIS OF CHIRAL 1-ALKANOLS
申请人:PURDUE RESEARCH FOUNDATION
公开号:US20160332940A1
公开(公告)日:2016-11-17
The invention relates to highly enantioselective processes for the synthesis of chiral 1-alkanols via Zr-catalyzed asymmetric carboalumination of alkenes.
这项发明涉及通过Zr催化的不对称烯烃碳硼烷化反应合成手性1-烷醇的高对映选择性过程。
Highly Efficient Asymmetric Synthesis of Fluvirucinine A<sub>1</sub> via Zr-Catalyzed Asymmetric Carboalumination of Alkenes (ZACA)−Lipase-Catalyzed Acetylation Tandem Process
作者:Bo Liang、Ei-ichi Negishi
DOI:10.1021/ol702272d
日期:2008.1.1
ZACA-lipase-catalyzed acetylation tandem process has been shown to proceed satisfactorily with either TBS-protected 4-penten-1-ol or 3-buten-1-ol to provide the corresponding enantiomerically pure (R)-2-ethyl-1-alkanols. Either (R)-5 or (R)-6 was converted to 3 in seven steps. The other fragment 4 was synthesized in nine steps from (-)-(S)-citronellol. Conversion of 3 and 4 into 99% pure fluvirucinine
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
asymmetric synthesis, the preparation of enantiomerically pure (>/=99% ee) compounds remains a challenge in modern organic chemistry. We report here a strategy for a highly enantioselective (>/=99% ee) and catalytic synthesis of various gamma- and more-remotely chiral alcohols from terminal alkenesvia Zr-catalyzed asymmetric carboalumination of alkenes (ZACA reaction)-Cu- or Pd-catalyzed cross-coupling
Enantioselective Synthesis of Chiral Isotopomers of 1-Alkanols by a ZACA-Cu-Catalyzed Cross-Coupling Protocol
作者:Shiqing Xu、Akimichi Oda、Ei-ichi Negishi
DOI:10.1002/chem.201405053
日期:2014.12.1
chiral compounds have a non‐measurable specificrotation, owing to very small differences between the isotopomeric groups, and exhibit cryptochirality. This particular class of compounds is difficult to synthesize and characterize. Herein, we present a catalytic and highly enantioselective conversion of terminal alkenes to various β and more remote chiral isotopomers of 1‐alkanols, with ≥99 % enantiomeric