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Synthesis of organosilicon isocyanate, useful as adhesion promoter, inorganic surface modifier, crosslinker or in (in)organic polymer sealant or adhesive, uses a carbamate-substituted organosilicon compound and halo-silane or -germane
Synthesis of organosilicon isocyanate, useful as adhesion promoter, inorganic surface modifier, crosslinker or in (in)organic polymer sealant or adhesive, uses a carbamate-substituted organosilicon compound and halo-silane or -germane
Synthesis of organosilicon compounds (I) containing isocyanate (NCO) groups comprises reacting organosilicon compounds (II) of optionally carbamate-substituted units (IIA) with di-, tri- or tetrahalo-silanes or -germanes (III). Synthesis of organosilicon compounds (I) containing isocyanate (NCO) groups comprises reacting organosilicon compounds (II) of optionally carbamate-substituted units of formula (IIA) with di-, tri- or tetrahalo-silanes or -germanes of formula (III): Ra(R1O)bXcSiO(4-a-b-c)/2 (IIA) R3d(4O)eEZf (III) X = SiC- or SiOC-bound group of formula (IV). -(O)g-Y-NH-C(O)OR2 (VI) R, R1-R4 = optionally substituted hydrocarbyl group, optionally with oxygen (O), sulfur (S), nitrogen (N) or phosphorus (P) in the chain, bound to SiC; Z = halogen; E = silicon (Si) or germanium (Ge); a, b = 0-3; c = 0-4; d, e = 0-1; f = 2-4; (a+b+c) = at most 4; and (d+e+f) = 4.
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机译：包含异氰酸酯（NCO）基团的有机硅化合物（I）的合成包括使任选地氨基甲酸酯取代的单元（IIA）的有机硅化合物（II）与二，三或四卤代硅烷或-锗烷（III）反应。包含异氰酸酯（NCO）基团的有机硅化合物（I）的合成包括使式（IIA）的氨基甲酸酯取代的单元的有机硅化合物（II）与式（III）的二，三或四卤代硅烷或-锗烷反应： Ra（R 1 O）bXcSiO（4-abc）/ 2（IIA）R 3 d（4O）eEZf（III）X =式（IV）的与SiC或SiOC键合的基团。 -（O）gY-NH-C（O）OR 2（VI）R，R 1 -R 4 =任选取代的烃基，任选被氧（O），硫（S），氮（ N）或磷（P），与SiC结合; Z =卤素; E =硅（Si）或锗（Ge）; a，b = 0-3; c = 0-4; d，e ＝ 0-1; f = 2-4; （a + b + c）=最多4;和（d + e + f）= 4。
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