Transformation of aldehydes into (E)-1-alkenylboronic esters with a geminal dichromium reagent derived from a dichloromethylboronic ester and CrCl

Kazuhiko Takai, Norio Shinomiya, Hiroya Kaihara, Naomi Yoshida, Toshio Moriwake, Kiitiro Utimoto

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Abstract

Synthetically useful (E)-1-alkenylboronic esters are prepared stereoselectively from aldehydes with one-carbon extention by using a geminal dichromium reagent derived from a dichloromethylboronic ester, CrCl 2 , and LiI under mild conditions.

Original languageEnglish
Pages (from-to)963-964
Number of pages2
JournalSynlett
Volume1995
Issue number9
DOIs
Publication statusPublished - Sep 1 1995

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Keywords

  • chromium(II)
  • E -1-alkenylboronic ester
  • geminal dichromium reagent

ASJC Scopus subject areas

  • Organic Chemistry

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