Patent ID: 8329923

Claim:
A method for synthesizing a compound having a general formula (I): the method comprising: contacting a compound having a general formula (II): with a diprotic acid having a negative pKa, wherein R 1 and R 2 are independently selected from the group consisting of C 1-20 alkyl, halo C 1-20 alkyl, C 4-10 cycloalkyl, C 1-3 alkyl C 1-10 alkanoate, C 1-3 alkyl C 1-10 alkanamide, C 2-10 alkenyl, C 3-10 cycloalkenyl, aryl C 1-5 alkyl, di-aryl C 1-5 alkyl, tri-C 1-20 aryl C 1-5 alkyl, aryl C 2-5 alkenyl, C 2-10 alkynyl, C 1-10 alkanol, C 1-10 alkanethiol, aryl, heterocyclic radical, heteroaryl, C 1-3 alkoxy C 1-3 alkyl, di-C 1-3 alkoxy C 1-3 alkyl, C 1-3 alkyloxy aryl C 1-3 alkyl, C 1-3 alkyl aryl, C 1-3 alkyl sulfanyl C 1-3 alkyl, C 1-3 alkyl aryl sulfanyl C 1-3 alkyl, aryloxy C 1-3 alkyl, N,N—C 1-3 dialkyl C 1-3 alkylamine, N—C 1-3 alkyl C 1-3 alkylamine, and aryl sulphonyl C 1-3 alkyl, or R 1 and R 2 together form a cycloalkyl group or a heterocyclic group, and wherein X and Y are independently selected from the group consisting of hydrogen, chloro, bromo, iodo, boronic acid, boronate esters, borane, pseudohalogen, and organotin.