The reagents used for the synthesis of 2 from TriMP were combined in one pot rather than proceeding through isolated 1. This is analogous to the procedure employed by Taylor. In a glovebox, a stock solution was prepared of [TBA] 3 [P 3 O 9 ] • H 2 O in acetonitrile at a concentration of 0.10 g/mL. This solution was stored over activated 4Å sieves for at least 24 hours. To this solution of [TBA] 3 [P 3 O 9 ] • H 2 O (0.50 mL, 0.052 mmol) was added triethylamine (0.015 mL, 0.10 mmol). To this mixture was then added a solution of MstCl (0.011 g, 0.052 mmol) in acetonitrile (0.5 mL) followed by a solution of DABCO (0.023 g, 0.21 mmol) in acetonitrile (0.5 mL). The resulting mixture was mixed and analyzed by 31 P{ 1 H} NMR.