Photolysis of Tricarbonyl(η5-cyclohexadienyl)manganese in Tetrahydrofuran, Reactions with Cumulated Dienes
作者:Cornelius G. Kreiter、Norbert K. Wachter、Guido J. Reiß
DOI:10.1002/(sici)1099-0682(199904)1999:4<655::aid-ejic655>3.0.co;2-y
日期:1999.4
[Mn(η5-C6H7)(CO)3] (1) forms highly reactive [Mn(η5-C6H7)(CO)2(THF)] (2) upon UV irradiation in THF at 208 K. Solvent complex 2 reacts between 208 and 293 K with 1,1-disubstituted allenes C3H2RR′ [R, R′ = CH3, CH3 (A); CH3, C6H5 (B); C2H5, C6H5 (C); C6H5, C6H5 (D); OCH3, Si(CH3)3 (E)] to four different types of complexes: The [5+2] cycloadduct [Mn(η3:2-C9H9RR′)(CO)3] (3E), rearranged [5+2] cycloadducts
[Mn(η5-C6H7)(CO)3] (1) 在 THF 中 208 K 的紫外线照射下形成高反应性 [Mn(η5-C6H7)(CO)2(THF)] (2)。溶剂络合物 2 在208 和 293 K 具有 1,1-二取代的丙二烯 C3H2RR' [R, R' = CH3, CH3 (A); CH3、C6H5 (B);C2H5、C6H5(C);C6H5、C6H5(D);OCH3, Si(CH3)3 (E)] 到四种不同类型的配合物: [5+2] 环加合物 [Mn(η3:2-C9H9RR')(CO)3] (3E),重排 [5+2]环加合物 [Mn(η3:2-C9H9RR')(CO)3] (4B, 4C, 4D), 1:2 加合物 [Mn(η3:2-C12H11R2R'2)(CO)3] (5A–5E),和 1:3 加合物 [Mnη3:2:2-C15H13(CH3)6}(CO)2] (6A)。通