Alkynylaryliodonium tosylates and aryl[.beta.-(tosyloxy)vinyl]iodonium tosylates from reactions of terminal alkynes with [hydroxy(tosyloxy)iodo]benzene
Alkynyliodonium salts as alkynylating reagents: direct conversion of alkynylphenyliodonium tosylates to dialkyl alkynylphosphonates with trialkyl phosphites