Synthesis of Enantiopure Pyranoisoxazole and Oxepanoisoxazole Derivatives from O-Alkynyl Carbohydrate Ethers by the Application of Intramolecular Nitrile Oxide Cycloaddition
Synthesis of Enantiopure Pyranoisoxazole and Oxepanoisoxazole Derivatives from O-Alkynyl Carbohydrate Ethers by the Application of Intramolecular Nitrile Oxide Cycloaddition
‘On-water’ synthesis of chromeno-isoxazoles mediated by [hydroxy(tosyloxy)iodo]benzene (HTIB)
作者:Mustafa J. Raihan、Veerababurao Kavala、Chun-Wei Kuo、B. Rama Raju、Ching-Fa Yao
DOI:10.1039/b926085d
日期:——
An efficient and handy method for the synthesis of chromeno-isoxazole/isoxazolines under ‘on-water’ conditions is described, together with a thorough mechanistic study.
Synthesis and diverse general oxidative cyclization catalysis of high-valent Mo<sup>VI</sup>O<sub>2</sub>(HL) to ubiquitous heterocycles and their chiral analogues with high selectivity
作者:Nabyendu Pramanik、Satinath Sarkar、Dipanwita Roy、Sudipto Debnath、Sukla Ghosh、Saikat Khamarui、Dilip K. Maiti
DOI:10.1039/c5ra21825j
日期:——
The first synthesis and diverse oxidative cyclization catalysis properties of high-valent MoVI–triazole are demonstrated towards highly selective construction of benzimidazoles, benzothiazoles, isoxazolines, isoxazoles and their chiral analogues.
Synthesis of Enantiopure Pyranoisoxazole and Oxepanoisoxazole Derivatives from O-Alkynyl Carbohydrate Ethers by the Application of Intramolecular Nitrile Oxide Cycloaddition