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Synlett 1998; 1998(12): 1438-1440
DOI: 10.1055/s-1998-1951
DOI: 10.1055/s-1998-1951
letter
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Stereoselective Preparation and Reaction of Chiral Secondary Cycloalkyl- and Alkyl-Zinc Reagents
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Publikationsverlauf
Publikationsdatum:
31. Dezember 2000 (online)
![](https://www.thieme-connect.de/media/synlett/199812/lookinside/thumbnails/10.1055-s-1998-1951-1.jpg)
The hydroboration of trisubstituted olefins with IpcBH2 provides enantiomerically enriched organoboranes which after successive treatment with Et2BH and i-Pr2Zn afford diastereomerically pure (> 95% de) configurationally stable cyclic and open-chain organozinc reagents which can be trapped with various electrophiles (allylic halides, acid chlorides and 1-bromoalkynes) with retention of configuration.
asymmetric synthesis - zinc organometallic - copper catalysis - organoborane