Organoxysilane compounds having silyl-protected secondary amino group and making method

An organoxysilane compound having a silyl-protected secondary amino group, represented by the general formula (1):

• wherein i) R1 is a substituted or unsubstituted, secondary or tertiary, monovalent hydrocarbon group of 3 to 20 carbon atoms, and R2, R3, R4, R6 and R7 each are a substituted or unsubstituted, monovalent hydrocarbon group of 1 to 20 carbon atoms, or ii) R1, R2 and R3 each are a substituted or unsubstituted, monovalent hydrocarbon group of 2 to 20 carbon atoms, and R4, R6 and R7 each are a substituted or unsubstituted, monovalent hydrocarbon group of 1 to 20 carbon atoms, and in either case, R5 is a straight or branched divalent hydrocarbon group of 1 to 20 carbon atoms, and n is 0 or 1.