N,N-bis(trimethylstannyl)methanamine(CAS#1068-67-3)

There are many methods for preparing 4,5-bis (diphenylphosphine) -9,9-dimethyloxanthracene, including direct synthesis and indirect synthesis. The direct synthesis method involves the reaction of phenol and diphenylphosphine chloride to produce the target product under the catalysis of a base. The indirect synthesis method involves first synthesizing intermediates and then further reacting to obtain the target product.