- Cleavage Reactions of some Phenyltin Compounds with Iodine Halides, -Pseudohalides and -Carboxylates
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Cleavage reactions of iodinehalides, -pseudohalides IX (X = Cl, Br, NCO, NCS, N3 and CN) with Ph3SnCp yield triphenyltinhalides, -pseudohalides (Ph3SnX) indicating cleavage of Cp-Sn bond in preference to Ph-Sn bond, and cleavage reactions of iodine carboxylates IX′ (X′ = CH3OCO, C5H5OCO, C6H5CH2OCO, o-NH2C6H4OCO, o-CIC6H4OCO, p-NO2C6H4OCO, p-NH2C6H4OCO, C6H5CH =CHOCO) (in situ) with Ph3SnCl give hitherto unknown diphenylchlorotin carboxylates (Ph2SnX′Cl) indicating cleavage of Ph-Sn bond in preference to Cl-Sn bond. On the basis of the results, it is predicated that these diphenylchlorotin carboxylates possess bridging carboxylate groups (inter-molecularly chelated structure) in the solid state, whereas in solution they contain chelated carboxylate groups (intra-molecularly chelated structures).
- Srivastava,Singh,Tangri,Sinha,Bajpai
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p. 443 - 445
(2007/10/03)
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- Reactions of Tin-Naphthyl Bond with Halogens and Pseudohalogens
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Reactivity of Sn-phenyl or Sn-naphthyl bond in tetraorganotins, PhnSnNp4-n (Ph = phenyl, Np = α-naphthyl; n = 2,3) towards halogens (Br2 and I2), interhalogens (IBr and ICl), interpseudohalogens (BrCN and ICN) and pseudohalogen (SCN)2 has been studied.It is found that the Sn-Np bond is preferentially cleaved yielding in most cases phenyltin derivatives along with the corresponding α-naphthyl halides.
- Bhattacharya, S. N.,Husain, Ishrat
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p. 1119 - 1121
(2007/10/02)
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