Reductive N-Alkylation of Amides with Carbonyl Compounds Using Copper(II) Bromide and 1,1,3,3-Tetramethyldisiloxane

IF 2.7 4区 化学 Q1 CHEMISTRY, ORGANIC
Tomoya Nobuta, Noriyuki Yamagiwa, Yutaka Suto
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引用次数: 0

Abstract

We report a reductive N-alkylation of amides using carbonyl compounds as alkylating agents and 1,1,3,3-tetramethyldisiloxane (TMDS) as the reducing agent with CuBr2. The synthesis of secondary amides is essential in organic chemistry, and recently, some reductive N-alkylation of primary amides has been reported; however, previous methods require harsh conditions, such as high temperatures and/or pressures, and substrate compatibility is limited. Our method proceeds under mild reaction conditions and does not require toxic or expensive reagents. A range of substrates, including aromatic, aliphatic, and cinnamyl amides, as well as γ-lactams, afforded the corresponding alkylated amides in moderate to high yields. Notably, aldehydes and ketones can serve as alkylating agents in this transformation.

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溴化铜和1,1,3,3-四甲基二硅氧烷催化酰胺与羰基化合物的n -烷基化反应
我们报道了以羰基化合物为烷基化剂,以1,1,3,3-四甲基二硅氧烷(TMDS)为还原剂与CuBr2进行酰胺的n -烷基化反应。仲酰胺的合成是有机化学的重要组成部分,近年来,一些仲酰胺的n -烷基化反应已被报道;然而,以前的方法需要苛刻的条件,例如高温和/或压力,并且衬底兼容性有限。我们的方法在温和的反应条件下进行,不需要有毒或昂贵的试剂。一系列底物,包括芳香、脂肪和肉桂酰酰胺,以及γ-内酰胺,提供相应的烷基化酰胺在中高产量。值得注意的是,醛类和酮类可以作为烷基化剂。
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来源期刊
CiteScore
4.70
自引率
3.70%
发文量
372
期刊介绍: Organic chemistry is the fundamental science that stands at the heart of chemistry, biology, and materials science. Research in these areas is vigorous and truly international, with three major regions making almost equal contributions: America, Europe and Asia. Asia now has its own top international organic chemistry journal—the Asian Journal of Organic Chemistry (AsianJOC) The AsianJOC is designed to be a top-ranked international research journal and publishes primary research as well as critical secondary information from authors across the world. The journal covers organic chemistry in its entirety. Authors and readers come from academia, the chemical industry, and government laboratories.
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