76-63-1Relevant articles and documents
Nucleophilicity vs basicity in the reaction of sodium tert-butoxide with β-stannyl ketones
Chopa, Alicia B.,Murray, Ana P.
, p. 1476 - 1478 (2001)
The reaction of 3-stannyl-1,2,3-triphenyl- and 3-stannyl-1,3-diphenyl-2-methylpropanones with sodium tert-butoxide in either t-BuOH or dimethyl sulfoxide (DMSO) as solvent leads to elimination and/or substitution products. The composition of the product m
The effect of ligands, solvent and temperature on the reactions of allyltin(IV) compounds with singlet oxygen
Dang, H.-S.,Davies, A. G.
, p. 287 - 298 (2007/10/02)
The reaction of singlet oxygen with a variety of allyltin compounds CH2=CHCH2SnR3 (R3 = Me3, Bu3, allyl3, (cyclo-C6H11)3, Ph3, allylBu2, Bu2Cl, Bu2OAc, allylCl2, allylCl2bipy) has been investigated, and the allylperoxytin compounds, 3-stannylallyl hydroperoxides, and 4-stannyl-1,2-dioxolanes which result from M-ene, H-ene and cycloaddition processes, respectively, have been identified by NMR spectroscopy.As the tin centre becomes more electropositive, as indicated by the 13C NMR shift of the allylic CH2 group, the proportion of the M-ene reaction increases, and when δCH2 is above about 23.7, the allylperoxytin compound is the only product.An exception to this rule is tetraallyltin, δCH2 16.13, which similarly shows only the M-ene reaction.This is tentatively ascribed to the special effect of hyperconjugation between the C-Sn ?-bond and the remaining ?-systems.A polar solvent favours the M-ene reaction.The cycloaddition reaction is favoured by low temperature, and at -70 deg C in a non-polar solvent it may become the major route.Diallylmercury and allylmercury chloride react with singlet oxygen to show only the M-ene reaction, but also undergo extensive photosensitized decomposition.With 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD), allylmercury chloride shows only the M-ene reaction.
Transition-metal complexes corresponding to the insertion into a group 4B element-carbon bond. 3. Reactivity of complexes with unsaturated carbon-carbon bonds. Crystal structure of (η5-cyclopentadienyl)(triphenylgermyl) (η3-hexenyl) nitrosylmolybdenum
Carré, Francis,Colomer, Ernesto,Corriu, Robert J. P.,Vioux, André
, p. 970 - 977 (2008/10/08)
Anions of the type [(η5-C5H5)(CO)(L)(M4BPh 3)MT]- (L = CO, NO; M4B - Si, Ge, Sn; MT = Mn, Mo, W) react with allyl halides, affording neutral σ-bonded alkenyl derivatives. These new complexes can rearrange to η3-allyl complexes and also lose (allyl)M4B to give η2-allyl complexes. According to the nature of both the transition metal and the group 4B metal η1, η3, or η2 complexes are obtained. A mechanism for these successive reactions is proposed. Butenyl and hexenyl iodides also react with the anions, affording η1 complexes that can eliminate CO and rearrange to a η3 ligand as shown by X-ray structure determination.