作者:Hiroyuki Shinohara、Motohiro Sonoda、Shingo Atobe、Haruna Masuno、Akiya Ogawa
DOI:10.1016/j.tetlet.2011.09.068
日期:2011.11
FeCl3-catalyzed convenient synthesis of 3-hydroxyphthalates has been achieved by a Diels–Alder reaction of furans with dimethyl acetylenedicarboxylate, followed by ring-opening aromatization reaction of the Diels–Alder adducts, 7-oxabicyclo[2.2.1]hepta-2,5-diene derivatives. In addition, 7-azabicyclo[2.2.1]hepta-2,5-diene derivative, derived from N-Boc-pyrrole and dimethyl acetylenedicarboxylate, also converted
IrCl 3 ·3H 2 O或FeCl 3催化3-羟基邻苯二甲酸酯的方便合成是通过呋喃与乙炔二羧酸二甲酯的Diels-Alder反应,然后进行Diels-Alder加合物7-氧杂双环的开环芳构化反应而实现的。 2.2.1]庚-2,5-二烯衍生物。另外,衍生自N -Boc-吡咯和乙炔二羧酸二甲酯的7-氮杂双环[2.2.1]庚-2,5-二烯衍生物也转化为3-氨基邻苯二甲酸酯衍生物。