Synthesis and demethylation of 4,22-dimethoxy[2.10]metacyclophan-1-yne with BBr3 to afford a novel [10](2,9)-5a,11a-benzofuro-5a-bora-11-bromochromenophane
Synthesis and demethylation of 4,22-dimethoxy[2.10]metacyclophan-1-yne with BBr3 to afford a novel [10](2,9)-5a,11a-benzofuro-5a-bora-11-bromochromenophane