Rhenium-catalyzed synthesis of naphthalene derivatives via insertion of aldehydes into a C–H bond
作者:Yoichiro Kuninobu、Yuta Nishina、Kazuhiko Takai
DOI:10.1016/j.tet.2007.05.083
日期:2007.8
A rhenium complex, [ReBr(CO)3(THF)]2, catalyzed reactions of aromatic ketimines and aldehydes with dienophiles, followed by dehydration, to give naphthalene derivatives in good to excellent yields. This reaction proceeds via C–H bond activation, insertion of an aldehyde, intramolecular nucleophilic cyclization, reductive elimination, elimination of aniline and Diels–Alder reaction. After dehydration
complex络合物[ReBr(CO)3(THF)] 2催化芳香族酮亚胺和醛与亲二烯体的反应,然后进行脱水,从而以良好或极佳的收率得到萘衍生物。该反应通过C–H键活化,醛的插入,分子内亲核环化,还原消除,苯胺消除和Diels–Alder反应进行。脱水后,形成萘衍生物。