Organometallic cyclisation reactions. Part 3. Synthesis of substituted arsetans and arsolans
Abstract
The reductive cyclisation of 3-chloropropyliodo(methyl)arsine and 3-chloropropyliodo(phenyl)arsine with sodium in tetrahydrofuran affords the four-membered alicyclic tertiary arsines 1-methylarsetan and 1-phenylarsetan respectively. The five-membered homologues 1-methyl- and 1-phenyl-arsolan may be prepared similarly from the corresponding 4-chlorobutyliodo-methylarsine and -phenylarsine.