Reactions of azulenes with 1,2-diaryl-1,2-ethanediols in methanol in the presence of hydrochloric acid: comparative studies on products, crystal structures, and spectroscopic and electrochemical properties
作者:Miwa Nakatsuji、Yasuhito Hata、Takeshi Fujihara、Kensaku Yamamoto、Masato Sasaki、Hideko Takekuma、Masakuni Yoshihara、Toshie Minematsu、Shin-ichi Takekuma
DOI:10.1016/j.tet.2004.05.022
日期:2004.7
Similarly, reaction of methyl azulene-1-carboxylate (1b) with 2b under the same reaction conditions as 1a gives no product; however, reactions of 1-chloroazulene (1c) and the parent azulene (1d) with 2b under the same reaction conditions as 1a give 2-[3-(1-chloroazulenyl)]-1,1-bis(4-methoxyphenyl)ethylene (4) (81% yield) and 2-azulenyl-1,1-bis(4-methoxyphenyl)ethylene (5) (15% yield), respectively. Along
尽管愈创木酚(1a)与1,2-二苯基-1,2-乙二醇(2a)在甲醇中,在60°C的盐酸中,在有氧条件下于有氧条件下反应3小时没有产生任何产物,但1a与1, 2-双(4-甲氧基苯基)-1,2-乙二醇(2b)在与2a相同的反应条件下得到新的乙烯衍生物2-(3-愈创木烯基)-1,1-双(4-甲氧基苯基)乙烯(3),产率为97%。类似地,在与1a相同的反应条件下,将z蓝色-1-羧酸甲酯(1b)与2b反应,没有产物。但是,1-氯杂氮烯(1c)与母体杂氮烯(1d)与2b在与1a相同的反应条件下得到2- [3-(1-氯氮杂烯基)]-1,1-双(4-甲氧基苯基)乙烯(4)(81%收率)和2-氮杂烯基-1, 1-双(4-甲氧基苯基)乙烯(5)(15%收率)。除上述反应外,1a与1,2-双(4-羟苯基)-1,2-乙二醇(2c)和1- [4-(二甲基氨基)苯基] -2-苯基-1,2-乙二醇的反应(2d)在与2b