Patent ID: 8003815

Claim:
A method of preparing a cross-condensed compound of an amino acid derivative and (aminoalkyl)trialkoxysilane using microwaves, wherein said amino acid derivative has the formula 2: and wherein the (aminoalkyl)trialkoxysilane has the formula 3: and the cross-condensed compound of an amino acid derivative and (aminoalkyl)trialkoxysilane has the formula 1: wherein said method comprises the steps of: 1) irradiating and heating an amino-acid derivative of formula 2 and (aminoalkyl)trialkoxysilane of formula 3 in a microwave reactor to obtain a reaction product of formula 1; and 2) refining the reaction product obtained in the step a) by removing an unreacted solid material from the reaction product and then leaving the reaction product at room temperature under vacuum to remove excess, wherein R 1 and R 2 are each independently or selectively H, a straight-chain or a branched-chain alkyl group of C 1 -C 7 , or an aryl group of C 5 -C 10 which is unsubstituted or substituted with halogen atoms, and R 3 is independently or selectively a straight-chain or a branched-chain alkyl group of C 1 -C 8 , or an aryl group of C 5 -C 10 , which is unsubstituted or substituted with halogen atoms, wherein n is an integer of 0 to 7; and wherein m is an integer of 1 to 8.