2-bis(methylthio)benzoxazoles 8a–d, 2,2-bis- (acetyl)benzoxazole 8e, 2-(3-methyl-1-phenylpyrazolo- 4-yl)benzoazole derivatives 16a–c, as well as the previously reported 2-di[cyano(acetyl)-methylene]benzothiazoles 7a,b have been obtained via a new utility of ketene dithioacetals 1a,b and 12 with aniline derivatives 2. Rationales for the reactions pathways are presented. © 2004 Wiley Periodicals, Inc. Heteroatom Chem
新型多取代 1,5-苯二氮卓 5, 2,2-双(甲
硫基)
苯并恶唑 8a–d, 2,2-双-(乙酰)
苯并恶唑 8e, 2-(
3-甲基-1-苯基吡唑并-4-基)苯并唑衍
生物 16a–c 以及先前报道的 2-二[
氰基(乙酰基)-亚甲基]
苯并噻唑 7a、b 已通过
乙烯酮二
硫缩醛 1a、b 和 12 与
苯胺衍
生物 2 的新效用获得。 反应的基本原理提出了途径。© 2004 Wiley Periodicals, Inc. 杂原子
化学 15:407–412, 2004; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20031