A Convenient Synthesis of 2<i>H</i>-1,2,4-Benzothiadiazine 1,1-Dioxides from 2-Aminobenzenesulfonamide and Carboxylic Acids by using Polyphosphoric Acid Trimethylsilyl Ester as Condensing Agent
作者:Y. Imai、A. Mochizuki、M. Kakimoto
DOI:10.1055/s-1983-30543
日期:——
IMAI, Y.;MOCHIZUKI, A.;KAKIMOTO, M., SYNTHESIS, BRD, 1983, N 10, 851
作者:IMAI, Y.、MOCHIZUKI, A.、KAKIMOTO, M.
DOI:——
日期:——
Ruthenium-catalysed oxidative synthesis of heterocycles from alcohols
作者:Andrew J. A. Watson、Aoife C. Maxwell、Jonathan M. J. Williams
DOI:10.1039/c1ob06516e
日期:——
Ruthenium-catalysed hydrogen transfer has been successfully used for the conversion of alcohols into either 2,3-dihydroquinazolines or quinazolines. The choice of reaction conditions allows for the selective formation of either heterocycle and the methodology can also be applied to the sulfonamide analogue.