Abstract
C-fluorinated phosphinic acid derivatives RP(O)(OEt)CF 2Br (R=Ph, Me) 2a, b and [RP(O)(OR 1)] 2CF 2 (R =Ph, R 1= Et, H) 3, 4 have been prepared via a Michaelis-Arbuzov reaction. The signs of the scalar coupling constants in the AMX spin system of (EtO) 2P(O)CHFCOOEt (5) formed by the P, F and H of the P-C(H)F unit were determined using spin-tickling techniques.
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