Thermal rearrangement of 2,2-disubstituted benzothiazoline I-oxides (1) in aprotic solvent afforded the corresponding 1,4-benzothiazines (2) and (3). The thermal reaction performed in the presence of electron-deficient acetylenic compounds produced new tricyclic compounds (7) whose structures have been established by an X-Ray crystal structure determination.
CHIOCCARA F.; NICOLAUS R. A.; NOVELLINO E.; PROTA G., CHIM. E IND. (ITAL.), 1976, 58, HO 8, 546-547
作者:CHIOCCARA F.、 NICOLAUS R. A.、 NOVELLINO E.、 PROTA G.
DOI:——
日期:——
CHIOCCARA F.; PROTA G.; NICOLAUS R. A.; NOVELLINO E., SYNTHESIS <SYNT-BF>, 1977, NO 12, 876-878
作者:CHIOCCARA F.、 PROTA G.、 NICOLAUS R. A.、 NOVELLINO E.