the National Natural Science Foundation of China (No. 20372015).
H-1,2,3-Diazaphospholes 3a3h were prepared from various ketone acylhydrazones and phosphorus trichlo-ride in the presence of triethylamine. Compounds 3 underwent feasible hetero-Diels-Alder reactions with cyclopen-tad...
Project supported by the National Natural Science Foundation of China (No. 20372015) and the Key Organic Synthesis Laboratory of Jiangsu Province (No. KJS01016).
A series of novel tricyclic O,N-heterocycles, [1,2,4]triazolo[3,2-d][1,5]benzoxazepin-2-thiones 7 were achieved via acid-induced ring closure of the geminal arylazo isothiocyanate compounds 5 which were derived from s...