Chemoselective synthesis of thieno[3,2-c][1,8]naphthyridin-4(5H)-ones by tandem cyclization
作者:Krishna C. Majumdar、Rafique-ul-Islam
DOI:10.1002/hc.20234
日期:——
A number of the thieno[3,2-c][1,8]-naphthyridin-4(5H)-ones are chemoselectively synthesized from 4-(4′-aryloxybut-2′-ynylthio)-1-phenyl-1,8-naphthyridin-2(1H)-ones in 82–90% yield by the formation of sulfoxide, followed by [2,3] and [3,3]sigmatropic rearrangement and an intramolecular Michael addition. © 2007 Wiley Periodicals, Inc. Heteroatom Chem 18:87–92, 2007; Published online in Wiley InterScience
许多 thieno[3,2-c][1,8]-naphthyridin-4(5H)-ones 是由 4-(4'-aryloxybut-2'-ynylthio)-1-phenyl-1 化学选择性合成的, 8-naphthyridin-2(1H)-ones 通过形成亚砜,然后 [2,3] 和 [3,3] sigmatropic 重排和分子内迈克尔加成以 82-90% 的产率得到。© 2007 Wiley Periodicals, Inc. 杂原子化学 18:87–92, 2007; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20234