Ironcarbonyl Complexes of 5,6-Dimethylidene-7-oxabicyclo[2.2.1]hept-2-ene Derivatives. Synthesis of Substituted Tricarbonyl(<i>ortho</i>-quinodimethane)iron Complexes and 2-Indanones
作者:Edia Bonfantini、Jean-Luc Métral、Pierre Vogel
DOI:10.1002/hlca.19870700715
日期:1987.11.4
deoxygenation of the 7-oxabicyclo[2.2.1]heptene moiety yielding tricarbonyl[C,5,6,C-η-(1-(dimethoxymethyl)-5,6-dimethylidenecyclohexa-1,3-diene)]iron (13). In MeOH, a concurrent, regioselective methoxycarbonylation was observed giving tricarbonyl[C,3,4,C-η-(methyl 5-(dimethoxymethyl)-3,4-dimethylidenecyclohexa-1,5-diene-1-carboxylate)]iron (14). Oxidative removal of the Fe(CO)3 moiety in 13 and 14 did
制备了1-二甲氧基甲基-5,6-二甲基二烯-7-氧杂双环[2.2.1]庚-2-烯(9)。在用Fe 2(CO)9处理后,首先对内环双键C(2)C(3)进行配位,得到相应的exo -Fe(CO)4络合物10。后者与Fe 2(CO)9反应,得到顺式-七羰基-μ-[1 RS,2 SR,3 RS,4 SR,5 RS,6 SR -2,3-η:C 5,6,C作为主要产物的-η-(1-(二甲氧基甲基)-5,6-二甲基-7-氧杂双环[2.2.1]庚-2-烯)]二铁(11)。加热时,对11-进行7-氧杂双环[2.2.1]庚烯部分的脱氧,得到三羰基[ C,5,6,C- η-(1-(二甲氧基甲基)-5,6-二甲叉基亚环己基-1,3-二烯)铁(13)。在MeOH中,观察到同时发生的区域选择性甲氧基羰基化反应,得到三羰基[ C,3,4,C- η-(甲基5-(二甲氧基甲基)-3,4-二甲叉基环己-1,5-二烯-1-羧酸