Cross-metathesis of allyl halides with olefins bearing an α-alkoxy amide group

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초록

We have examined whether the allyl halide cross-metathesis reaction tolerates alpha-alkoxy amide groups. Ruthenium-based catalysts I-Ill did not catalyze the cross-metathesis of allyl halides in the presence of an alpha-alkoxy N,N-dimethylamide group to any appreciable extent, but the reaction could tolerate either a bulky N,N-diisopropylamide or Weinreb amide group. In particular, the Grubbs-Hoveyda-Blechert 2nd generation catalyst (III) efficiently catalyzed the cross-metathesis of allyl halides with olefins bearing a Weinreb amide group. (C) 2011 Elsevier Ltd. All rights reserved.

키워드

Cross-metathesis; Allyl halide; Weinreb amide; Grubbs-Hoveyda-Blechert 2nd generation catalyst; ASYMMETRIC TOTAL-SYNTHESIS; STRUCTURE REVISION; STEREOSELECTIVE-SYNTHESIS; ABSOLUTE STEREOCHEMISTRY; EFFICIENT; RUCL2(=CHR)(PR(3))(2); SUBGLUTINOLS; ASSIGNMENT; CATALYSTS; ALKENES
제목
Cross-metathesis of allyl halides with olefins bearing an α-alkoxy amide group
저자
Yun, Jeong In; Kim, Deukjoon; Lee, Jongkook
DOI
10.1016/j.tetlet.2011.02.043
발행일
2011-04-20
유형
Article
저널명
Tetrahedron Letters
권
52
호
16
페이지
1928 ~ 1930