Conclusions
A convenient laboratory method has been proposed for the preparation of organometallic tin and germanium carbodiimides in excellent yields and satisfactory purities.
Organotin carbodiimides react with dicarboxylic acid anhydrides to give addition products, namely, organotin derivatives of N-substituted dicarboxylic acid monocyanamides. The corresponding reaction of tin and germanium isocyanates lead to the formation of N-tributylstannyl(germyl)imides of dicarboxylic acids, and CO2.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 859–865, April, 1988.
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Razuvaev, G.A., D'yachkovskaya, O.S., Malysheva, I.P. et al. Synthesis and reactions of organometallic carbodiimides and isocyanates. Russ Chem Bull 37, 739–744 (1988). https://doi.org/10.1007/BF01455491
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DOI: https://doi.org/10.1007/BF01455491