Sheng, Tao; Zhuang, Zhe; Wang, Zhen; Hu, Liang; Herron, Alastair N.; Qiao, Jennifer X.; Yu, Jin-Quan published an article in 2022. The article was titled 《One-Step Synthesis of β-Alkylidene-γ-lactones via Ligand-Enabled β,γ-Dehydrogenation of Aliphatic Acids》, and you may find the article in Journal of the American Chemical Society.Name: N-Methoxy-N-methylacetamide The information in the text is summarized as follows:
Ligand-enabled Pd-catalyzed regioselective α,β-dehydrogenation of carbonyl compounds via β-methylene C-H activation has recently emerged as a promising transformation. Herein, authors report the realization of β,γ-dehydrogenation and subsequent vinyl C-H olefination reactions of free carboxylic acids, thus providing a unique method for the structural diversification of aliphatic acids containing α-quaternary centers through sequential functionalizations of two β-C-H bonds and one γ-C-H bond. This tandem dehydrogenation-olefination-lactonization reaction offers a one-step preparation of β-alkylidene-γ-lactones, which are often difficult to prepare through conventional methods, from inexpensive and abundant free aliphatic acids. A variety of free aliphatic acids, such as isosteviol and grandiflorolic acid natural products, and olefins are compatible with the reported protocol. The newly designed bidentate oxime ether-pyridone and morpholine-pyridone ligands are crucial for this tandem reaction to proceed. Notably, these ligands also enable preferential methylene C-H activation over the previously reported, competing process of Me C-H bond olefination. In addition to this study using N-Methoxy-N-methylacetamide, there are many other studies that have used N-Methoxy-N-methylacetamide(cas: 78191-00-1Name: N-Methoxy-N-methylacetamide) was used in this study.
N-Methoxy-N-methylacetamide(cas: 78191-00-1) belongs to anime. Large quantities of aliphatic amines are made synthetically. The most widely used industrial method is the reaction of alcohols with ammonia at a high temperature, catalyzed by metals or metal oxide catalysts (e.g., nickel or copper). Mixtures of primary, secondary, and tertiary amines are thereby produced.Name: N-Methoxy-N-methylacetamide
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics