Ring opening of (spiro[2.4]hepta-4,6-diene)tricarbonyliron: A revisit

被引：12
作者：
Fu, YT
Chao, PC
Liu, LK [1 ]
机构：
[1] Acad Sinica, Inst Chem, Taipei 11529, Taiwan
[2] Natl Taiwan Univ, Dept Chem, Taipei 10767, Taiwan
来源：
ORGANOMETALLICS | 1998年 / 17卷 / 02期
关键词：
D O I：
10.1021/om970703y
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
(Spiro[2.4]hepta-4,6-diene)tricarbonyliron (2) self-converts to the tethered acyl complex (CO)(2)FeC(O)CH2CH2(eta(5)-C5H4) (3) when refluxed for 1 h in common organic solvents. The reaction of 2 with an external electrophile (CPh3+, H+) opens the three-membered ring, resulting in the cation (eta(5)-C5H4CH2CH2R)Fe(CO)(3)(+) whose structure was determined by spectroscopic methods and confirmed by X-ray analysis of the PPh3 derivative (eta(5)-C5H4CH2CH3)Fe(CO)(2)(PPh3)(+). The reaction of 3 with a strong electrophile (CPh3+, Me+) affords the rotationally restricted Fe-(alkoxy)carbene cation (CO)(2)Fe=C(OR)CH2CH2(eta(5)-C5H4)+, which can be converted to the Fe-(anilino)carbene cation (CO)2Fe=C(NHPh)CH2CH2(eta(5)-C5H4)(+).
引用
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页码：221 / 226
页数：6
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