Ni-catalyzed alpha-alkylation of unactivated amides and esters with alcohols by hydrogen auto-transfer strategy

Title Ni-catalyzed alpha-alkylation of unactivated amides and esters with alcohols by hydrogen auto-transfer strategy
Publication TypeJournal Article
Year of Publication2018
AuthorsMidya, SP, Rana, J, Pitchaimani, J, Nandakumar, A, Madhu, V, Balaraman, E
JournalCHEMSUSCHEM
Volume11
Issue22
Pagination3911-3916
Date PublishedNOV
Type of ArticleArticle
AbstractA transition-metal-catalyzed borrowing hydrogen/hydrogen auto-transfer strategy allows the utilization of feedstock alcohols as an alkylating partner, which avoids the formation of stoichiometric salt waste and enables a direct and benign approach for the construction of C-N and C-C bonds. In this study, a nickel-catalyzed alpha-alkylation of unactivated amides and ester (tert-butyl acetate) is carried out by using primary alcohols under mild conditions. This C-C bond-forming reaction is catalyzed by a new, molecularly defined nickel(II) NNN-pincer complex (0.1-1 mol %) and proceeds through hydrogen auto-transfer, thereby releasing water as the sole byproduct. In addition, N-alkylation of cyclic amides under Ni-catalytic conditions is demonstrated.
DOI10.1002/cssc.201801443
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)7.411
Divison category: 
Organic Chemistry

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