An Efficient Synthesis of 3,4-Dihydro-3-substituted-2H-naphtho[2,1-e][1,3]oxazine Derivatives Catalyzed by Zirconyl(IV) Chloride and Evaluation of its Biological Activities
作者:Amol H. Kategaonkar、Swapnil S. Sonar、Rajkumar U. Pokalwar、Atul H. Kategaonkar、Bapurao B. Shingate、Murlidhar S. Shingare
DOI:10.5012/bkcs.2010.31.6.1657
日期:2010.6.20
†An efficient and novel one-pot synthesis of new 3,4-dihydro-3-substituted-2H-naphtho[2,1-e][1,3]oxazine derivatives from 1-naphthol, various anilines and formalin at room temperature grinding is presented. The six-membered N,O-heterocyclic skeleton was constructed via zirconyl(IV) chloride promoted Mannich type reaction. In vitro antimicrobial activities of synthesized compounds have been investigated
Polyethylene glycol (PEG) mediated expeditious synthetic route to 1,3-oxazine derivatives
作者:Pravin V. Shinde、Amol H. Kategaonkar、Bapurao B. Shingate、Murlidhar S. Shingare
DOI:10.1016/j.cclet.2011.01.011
日期:2011.8
Various 1,3-oxazine derivatives were synthesized in high yields, within shorter reaction times using PEG-400 as a safer medium/mediator. This synthetic route is exceedingly easy and avoids the use of acid/base catalysts. (C) 2011 Murlidhar S. Shingare. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.