Reactivity of a Disilylene [{PhC(NBut)2}Si]2 toward Bromine: Synthesis and Characterization of a Stable Monomeric Bromosilylene

The reaction of the disilylene [{PhC(NBut)(2)}Si](2) (1) with 1 equiv of bromine in toluene afforded novel monomeric bromosilylene [{PhC(NBut)(2)}SiBr] (2). The result shows that the Si-I-Si-I bond in 1 was cleaved by bromine. An X-ray structure of compound 2 has been determined.