The syntheses of 10H-benzo[4,5]cyclohepta[2, 1-b]-thiophen-10-one 10H-benzo[4,5]cyclohepta[2,1-b]selenophen-10-one, and 10H-benzo[4,5]cyclohepta[2, 1-b]furan-10-one(1a-c) by lithiumdiisopropylamide-induced cyclization of (Z)-2-[2-(3-thienyl)-vinyl]benzoic acid, (Z)-2-[2-(3(selenienyl)vinyl]benzoic acid and (Z)-2-[2-(3-furano)vinyl]benzoic acid (2a-c), respectively, are reported.
10H-苯并[4,5]环庚[2,1 - b ]-
噻吩-10-酮的合成10H-苯并[4,5]环庚[2,1 - b ]
硒苯酚-10-酮和10H-
二异丙基氨基
锂诱导的(Z)-2- [2-(2-
噻吩基)-
乙烯基]
苯甲酸环化反应生成苯并[4,5]环庚[2,1 - b ]
呋喃-10-酮(1a-c),分别报道了(Z)-2- [2-(3-(
硒烯基)
乙烯基]
苯甲酸和(Z)-2- [2-(3-
呋喃基)
乙烯基]
苯甲酸(2a-c)。