Reactions of Elemental Phosphorus with Organometallic Compounds and Alkyl Halides. The Direct Synthesis of Tertiary Phosphines and Cyclotetraphosphines
Disclosed is a composition comprising (A) at least one compound selected from the group consisting of an ether compound having two or more ether groups, a trivalent phosphorus compound, and a ketone compound, (B) a boron trihalide, and (C) an episulfide compound.