Synthetic studies using unsaturated and active phosphonium salts. A convenient preparation of furano- and pyrano[2,3-c]pyridazines and substituted quinolines
作者:Wafaa M. Abdou、Neven A. Ganoub、Amin F. Fahmy、Abeer M. Shaddy
DOI:10.1002/hc.20065
日期:——
17a,b (22%) and isopyrroles 18a,b (∼45%) are obtained. On the other hand, the reaction of 2-[(benzylidene)amino]-benzonitrile (2) with 3 and 9 yielded benzoazepines 20 and 21 (∼56%). With 15a,b, quinolines 23a,b (∼46%) and quinazoline 25 (∼24%) are obtained. © 2005 Wiley Periodicals, Inc. Heteroatom Chem 16:56–64, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc
通过将乙烯基- (3) 和烯丙基三苯基溴化鏻 (9) 应用于 4-cyano-5,6-difur-2'yl-2H-pyridazin-3-one (1) 相应的稠合 5,8-oxazolo-6, 12 (~37%) 和吡喃-8, 13, 14 (~20%) 衍生物被分离出来,而使用烷基溴化物 15a,b 得到稠合呋喃 17a,b (22%) 和异吡咯 18a,b (~45%)。另一方面,2-[(亚苄基)氨基]-苄腈(2)与3和9的反应产生苯并氮杂20和21(~56%)。使用 15a,b,得到喹啉 23a,b (~46%) 和喹唑啉 25 (~24%)。© 2005 Wiley Periodicals, Inc. 杂原子化学 16:56–64, 2005; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc