A facile and eco-friendly protocol for the synthesis of sulfonylhydrazones fromsulfonyl chlorides, hydrazine hydrate and vinyl azides was developed. The unique advantage of this approach is that desired products can be obtained efficiently in water, which meets the requirements of green chemistry and provides good perspectives for the sustainable production of new drug candidate. Also, this reaction
Halogen-Bond-Promoted α-C−H Amination of Ethers for the Synthesis of Hemiaminal Ethers
作者:Zhangjin Pan、Zhenwei Fan、Beili Lu、Jiajia Cheng
DOI:10.1002/adsc.201800006
日期:2018.5.2
A simple halogen‐bond‐promoted α‐C−H amination of ether/thioether with a variety of N−H compounds has been accomplished. In the presence of low‐cost and readily available perfluorobutyl iodide, a diverse range of hemiaminal ether derivatives, including the valuable hydrazone hemiaminal ethers, were quickly assembled under thermal or visible‐light irradiation conditions. Mechanistic studies suggest
Photoactivation of Hydrazones for the Synthesis of Diarylalkanes and Trialkylmethylboronates: The Key Role Played by Soluble Base
作者:Po-Kai Peng、Clayton P. Donald、Zhencheng Dong、Jeremy A. May
DOI:10.1021/acs.orglett.4c00873
日期:2024.4.26
The synthesis of diaryl alkanes and tertiary organoboronates via Barluenga coupling at roomtemperature occurred via photoactivated conversion of aryl sulfonyl hydrazones to diazo compounds in the presence of soluble bases. The combination of arylsulfonyl hydrazone and a soluble base is necessary to provide a near-UV chromophore. Using aromatic hydrazones and aromaticboronicacids resulted in rapid