entire disclosure of german priority application p 3524215 9 is hereby incorporated by reference table 1__________________________________________________________________________starting materials and products amount silane alkali solventex employed employed acidamide cyanate amount product formula __________________________________________________________________________2 0 5 mol 3 chloropropyl trimethylsilane nmethyl formamide potassium cyanate dmf 150 ml str9 3 0 75 mol 3 chloropropyl trimethoxysilane 2 pyrroli done sodium cyanate dmso 250 ml str10 4 0 5 mol 3 bromopropyl triethoxysilane 2 pyrroli done potassium cyanate dmf 200 ml str11 5 0 5 mol 3 iodopropyltri n propoxysilane 2 pyrroli done sodium cyanate dmf 150 ml str12 6 1 mol 3 chloropropyl trimethoxysilane 2 piperi done potassium cyanate nmethyl pyrroli done 300 str13 7 1 mol 3 chloropropyl trimethoxysilane u03b5 capro lactam potassium cyanate dmf 300 ml str14 8 0 2 mol 3 chloropropyl dimethoxymethyl silane u03b5 capro lactam sodium cyanate dmf 50 ml str15 __________________________________________________________________________ table 2__________________________________________________________________________ product characterization analysis product summation molecular calculated ex amount yield formula weight found c h n__________________________________________________________________________2 115 4 g 87 3 c sub 9 h sub 20 n sub 2 o sub 5 si 294 354 40 89 7 63 10 60 40 93 7 76 11 18 3 209 7 g 96 3 c sub 11 h.