A practical synthesis of 2,3-dihydro-1,5-benzothiazepines
作者:Domenico C. M. Albanese、Nicoletta Gaggero、Meng Fei
DOI:10.1039/c7gc02097j
日期:——
2,3-Dihydro-1,5-benzothiazepines have been obtained through a domino process involving a Michael addition of 2-aminothiophenols to chalcones, followed by in situ cyclization. Up to 98% chemical yields have been obtained at room temperature under essentially neutral conditions by using hexafluoro-2-propanol as an efficient medium.
Abstract 1,5‐Benzothiazepines and 1,5‐benzodiazepines have been synthesized in solvent‐free conditions from chalcones and o‐aminothiophenol or o‐phenylenediamine in the presence of inorganic support. Silica gel was found to be an effective support for the synthesis of 1,5‐benzothiazepines, whereas alumina was effective for the synthesis of 1,5‐benzodiazepines.
Padwad, Manisha; Ingle, Journal of the Indian Chemical Society, 1999, vol. 76, # 3, p. 161 - 162
作者:Padwad, Manisha、Ingle
DOI:——
日期:——
Gupta, A. K.; Singh, V. K.; Pant, Umesh C., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 10, p. 1057 - 1059