Iodine-mediated cyclisation of thiobenzamides to produce benzothiazoles and benzoxazoles
摘要:
Synthesis of benzothiazoles by reaction of iodine with thiobenzamides, which do not possess an ortho alkoxy or ester group, is described. The unlikely synthesis of benzoxazoles from reaction of 2-alkoxythiobenzamides with iodine is also reported. (C) 2007 Elsevier Ltd. All rights reserved.
Iodine-mediated cyclisation of thiobenzamides to produce benzothiazoles and benzoxazoles
摘要:
Synthesis of benzothiazoles by reaction of iodine with thiobenzamides, which do not possess an ortho alkoxy or ester group, is described. The unlikely synthesis of benzoxazoles from reaction of 2-alkoxythiobenzamides with iodine is also reported. (C) 2007 Elsevier Ltd. All rights reserved.
chromium-catalyzed activation of acyl C–O bonds with magnesium for amidation of esters with nitroarenes. Low-cost chromium(III) chloride shows high reactivity in promoting amidation by using magnesium as reductant and chlorotrimethylsilane as additive. It provides a step-economic strategy to the synthesis of centrally important amide motifs using inexpensive and air-stable nitroarenes as amino sources.
Parshad; Sharma, Journal of the Indian Chemical Society, 1990, vol. 67, # 2, p. 150 - 152
作者:Parshad、Sharma
DOI:——
日期:——
Iodine-mediated cyclisation of thiobenzamides to produce benzothiazoles and benzoxazoles
作者:Nadale K. Downer-Riley、Yvette A. Jackson
DOI:10.1016/j.tet.2007.07.076
日期:2007.10
Synthesis of benzothiazoles by reaction of iodine with thiobenzamides, which do not possess an ortho alkoxy or ester group, is described. The unlikely synthesis of benzoxazoles from reaction of 2-alkoxythiobenzamides with iodine is also reported. (C) 2007 Elsevier Ltd. All rights reserved.