A Convenient Synthesis of 2‐Acylphenylacetonitriles
摘要:
The reaction of 2-cyanomethylbenzoyl chloride with Grignard reagents in the presence of cuprous iodide at -5degreesC easily affords 2-acylphenylacetonitriles with good yield.
Visible-Light-Promoted Site-Specific and Diverse Functionalization of a C(sp<sup>3</sup>)–C(sp<sup>3</sup>) Bond Adjacent to an Arene
作者:Yaxin Wang、Nengyong Wang、Jianyou Zhao、Minzhi Sun、Huichao You、Fang Fang、Zhong-Quan Liu
DOI:10.1021/acscatal.0c01495
日期:2020.6.19
We report here a strategy for inert C–C bondfunctionalization. Site-specific cleavage and functionalization of a saturated C(sp3)–C(sp3) bond via a visible-light-induced radical process have been achieved. The general features of this reaction are as follows. (1) Both linear and cyclic C(sp3)–C(sp3) bonds with a vicinal arene can be specifically functionalized. (2) One carbon is converted into a ketone
An interesting σ-bond insertion/benzannulation reaction for the synthesis of polysubstituted naphthalene derivatives has been developed from readily accessible ketones, arynes, and alkynoates. This practical and transition-metal-free method provides a novel route to diverse naphthalenes through a substrate-controlled rearrangement reaction with the cleavage of C–C bonds.
Arynes Double Bond Insertion/Nucleophilic Addition with Vinylogous Amides and Carbodiimides
作者:Ran Li、Huarong Tang、Haixing Fu、Hailong Ren、Xuemei Wang、Chunrui Wu、Chao Wu、Feng Shi
DOI:10.1021/jo402754d
日期:2014.2.7
some C═X double bonds, leading to benzannulated four-membered rings. The strain of these rings allow for a ready, spontaneous opening to afford o-quinomethide analogues. Subsequent nucleophilicaddition re-aromatizes the intermediates to achieve ortho-difunctionalization of arynes. In this report, we describe the aryne insertion into the C═C double bonds of vinylogous amides and the C═N double bonds of
Two different carbon functional groups can be introduced simultaneously into 1,2-positions of aromatic skeletons based upon a novel insertion reaction of arynes into a carbonyl–cyanomethyl σ-bond of α-cyanocarbonyl compounds.