S. Shah et Jd. Protasiewicz, PHOSPHA-WITTIG REACTIONS USING ISOLABLE PHOSPHORANYLIDENEPHOSPHINES ARP=PR3 (AR = 2,6-MES(2)C(6)H(3) OR 2,4,6-BU(T)3C(6)H(2)), Chemical communications, (15), 1998, pp. 1585-1586
Phosphoranylidenephosphines DmpP=PMe3 (1a, Dmp = 2,6-Mes(2)C(6)H(3)) a
nd MesP=PMe3 (1b, Mes* = 2,4,6-(Bu3C6H2)-C-t) act as 'Phospha-Wittig'
reagents with aldehydes providing phosphaalkenes [ArP=C(H)R] in high
yields.