Heteroleptic Tertiary Arsines, Me₂AsR: Synthesis and an Nmr Study

Abstract

Tertiary arsines of the type Me₂AsR [R = Et, Prⁿ, Prⁱ, Buⁿ, Buⁱ, Bu^t, allyl, Me₃SiCH₂, Ph, Bzl, mesityf, and p-totyl] have been synthesized in excellent yields by alkylating Me₂AsNMe₂ with Grignard reagents. The utility of aluminum alkyls as alternative alkylating agents for certain arsines has also been demonstrated. All compounds have been characterized using IR, MS, and NMR spectroscopy. An NMR spectral analysis (¹H, ¹³C, and ²⁹Si) is given and these results are compared with those for the homoleptic arsines, R₃AS.