TY - JOUR
T1 - Formal [2 + 2] and [4 + 2] cycloaddition reactions of iron(Ii) acetylide complexes. x-ray crystallographic structure determinations of [1,2-bis(diphenylphosphino)ethane](η5-cyclopentadienyl)(4,4-diphenyl-2-methyl-3-oxo-1-cyclobutenyl)iron(ii) and [1,2 is (diphenylphosphino)ethane](2-cyano-4-methylene-1-cyclobutenyl) (η5-cyclopentadienyl) iron (ii)
AU - Barrett, Anthony G.M.
AU - Carpenter, Nancy E.
AU - Mortier, Jacques
AU - Sabat, Michal
PY - 1990/1/1
Y1 - 1990/1/1
N2 - The iron(II) acetylide complexes 8, 12, and 13 reacted with diphenylketene, phenylethylketene, 3,3-dimethylbutanoyl chloride, 2-chloroacrylonitrile, diketene, dimethyl methylenemalonate, and 1,3-dicyano-l,3-butadiene to produce the corresponding formal [2 + 2] and [4 + 2] cycloadducts. The structures of (diphos)(Cp)FeC═C(Me)COC(Ph)2 (space group P2l/n (No. 14), Z = 4, a = 15.187 (2) Å, b = 18.548 (4) Å, c = 15.631 (2) Å,β = 109.16 (1)°, R(F) = 0.077) and (diphos)(Cp)FeC═C(CN)CH2C(═CH2) (space group Pna2l (No. 33), Z = 4, a = 18.860 (2) Å, b = 10.050 (1) Å, c = 15.733 (4) Å, R(F) = 0.038) were determined by X-ray crystallography.
AB - The iron(II) acetylide complexes 8, 12, and 13 reacted with diphenylketene, phenylethylketene, 3,3-dimethylbutanoyl chloride, 2-chloroacrylonitrile, diketene, dimethyl methylenemalonate, and 1,3-dicyano-l,3-butadiene to produce the corresponding formal [2 + 2] and [4 + 2] cycloadducts. The structures of (diphos)(Cp)FeC═C(Me)COC(Ph)2 (space group P2l/n (No. 14), Z = 4, a = 15.187 (2) Å, b = 18.548 (4) Å, c = 15.631 (2) Å,β = 109.16 (1)°, R(F) = 0.077) and (diphos)(Cp)FeC═C(CN)CH2C(═CH2) (space group Pna2l (No. 33), Z = 4, a = 18.860 (2) Å, b = 10.050 (1) Å, c = 15.733 (4) Å, R(F) = 0.038) were determined by X-ray crystallography.
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U2 - 10.1021/om00115a024
DO - 10.1021/om00115a024
M3 - Article
AN - SCOPUS:0025251466
SN - 0276-7333
VL - 9
SP - 151
EP - 156
JO - Organometallics
JF - Organometallics
IS - 1
ER -