Visible Light-Induced Deoxygenation and Allylation/Vinylation of Pyridyl Ethers
作者:Fan Wang、Yuwen Tang、Xiang Li、Jingtian Chen、Jingyue Yang
DOI:10.1021/acs.orglett.2c02756
日期:2022.10.14
The generation of alkyl radicals by deoxygenation of unactivated ethers under visible light catalysis is a hitherto unmet challenge. Herein, we report a visible light-induced deoxygenation of pyridyl ethers via formation of their pyridinium salts. The generated benzylic radicals further react with allyl/alkenyl sulfones to provide a series of coupling products in good to moderate yields. This process
Stable Oxypyridinium Triflate (OPT) Salts for the Synthesis of Halobenzyl Ethers
作者:Philip A. Albiniak、Shawn M. Amisial、Gregory B. Dudley、Joseph P. Hernandez、Sarah E. House、Margaret E. Matthews、Ernest O. Nwoye、Maureen K. Reilly、Sami F. Tlais
DOI:10.1080/00397910701818362
日期:2008.2.13
A collection of new oxypyridinium triflate reagents (1a-d) for the synthesis of halobenzyl ethers from alcohols under "mix-and-heat" conditions is described. The reagents are stable organic salts that can be stored indefinitely and handled without special precautions, making them attractive for general use in organic synthesis. Halobenzylation of representative alcohols occurs in good to excellent yield.
Synthesis, structure, and alkynylation reactivity of alkynyl-silicate, -germanate, and -stannate
作者:Shuta Iwabuchi、Tatsuya Morofuji、Naokazu Kano
DOI:10.1039/d4dt01688b
日期:——
The first anionic phenylethynyl-substituted pentacoordinated group 14 compounds were synthesized, crystallographically characterized, and applied for the nucleophilic alkynyl-group-transfer reagents.