Literature DB >> 17362024

Nickel-catalyzed 1,4-addition of trialkylboranes to alpha,beta-unsaturated esters: dramatic enhancement by addition of methanol.

Koji Hirano1, Hideki Yorimitsu, Koichiro Oshima.   

Abstract

[reaction: see text] Nickel catalyst systems for 1,4-addition of trialkylboranes to alpha,beta-unsaturated esters have been developed. Addition of methanol was found to be essential for the alkylation reaction with 9-alkyl-9-BBNs.

Entities:  

Year:  2007        PMID： 17362024     DOI： 10.1021/ol070288y

Source DB:  PubMed          Journal:  Org Lett        ISSN： 1523-7052            Impact factor:   6.005


  5 in total

1.  Nickel-catalyzed reductive conjugate addition to enones via allylnickel intermediates.

Authors:  Ruja Shrestha; Stephanie C M Dorn; Daniel J Weix
Journal:  J Am Chem Soc       Date:  2013-01-08       Impact factor: 15.419

2.  Pd-catalyzed carbonylative conjugate addition of dialkylzinc reagents to unsaturated carbonyls.

Authors:  Daniel W Custar; Hai Le; James P Morken
Journal:  Org Lett       Date:  2010-09-03       Impact factor: 6.005

3.  Asymmetric Ni-catalyzed conjugate allylation of activated enones.

Authors:  Joshua D Sieber; James P Morken
Journal:  J Am Chem Soc       Date:  2008-03-14       Impact factor: 15.419

4.  One-step Conversion of Levulinic Acid to Succinic Acid Using I2/t-BuOK System: The Iodoform Reaction Revisited.

Authors:  Ryosuke Kawasumi; Shodai Narita; Kazunori Miyamoto; Ken-Ichi Tominaga; Ryo Takita; Masanobu Uchiyama
Journal:  Sci Rep       Date:  2017-12-21       Impact factor: 4.379

5.  Ni(II)-catalyzed asymmetric alkenylations of ketimines.

Authors:  Mao Quan; Xiaoxiao Wang; Liang Wu; Ilya D Gridnev; Guoqiang Yang; Wanbin Zhang
Journal:  Nat Commun       Date:  2018-06-08       Impact factor: 14.919
  5 in total

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