Reaction of indene, 1,1-dimethylindene, spirocyclopropane-1,1-indene, and spirocyclopropane-9,9-fluorene with Py3M(CO)3/BF3 · OEt2 (M = Cr, Mo, W) involves two competing processes: (i) the formation of the 6-arene complexes (A) and (ii) the oxidative addition at the C(1)R and C(9)R bonds (R = alkyl) with the formation of chelated σ,π-complex (B). The reaction pathway (A or B) is determined both by
茚,
1,1-二甲基茚,螺
环丙烷-1,1-
茚和螺
环丙烷-9,9-
芴与Py 3 M(CO)3 / BF 3 ·OEt 2(M = Cr,Mo,W)的反应涉及两个竞争过程:(i)6-
芳烃配合物(A )的形成和(ii)C(1)R和C(9)R键(R =烷基)的氧化加成反应螯合的σ,π复数(B)。反应路径(A或B)由
金属和
配体决定。