Reactions of azines. 10. Synthesis of 4H,6H-pyrazolo[1,5-c]oxazol-4-ylidenes, 4H-pyrrolo[1,2-b]pyrazole-4-ones, and/or 4H,8H-pyrazolo[1,5-c][1,3]oxazepin-4-ones
Reactions of azines. 10. Synthesis of 4H,6H-pyrazolo[1,5-c]oxazol-4-ylidenes, 4H-pyrrolo[1,2-b]pyrazole-4-ones, and/or 4H,8H-pyrazolo[1,5-c][1,3]oxazepin-4-ones
作者:Edward E. Schweizer、John E. Hayes、K. J. Lee、Arnold L. Rheingold