Wittig Reaction.
G. Wittig and U. Schollkopf, Ber. 87,1318
(1954)
G. Wittig and W. Haag, Ber. 88, 1654 (1955)
Wadsworth, Emmons, J. Am. Chem. Soc. 83, 1733 (1961)
Horner et al., Ber. 95, 581 (1962)
Greenwald et al., J. Org. Chem. 28, 1128 (1963)
Schollkopf Angew. Chem. 71, 260 (1959)
Bergelson, Shemiakin, Angew. Cheon Internatl. Ed. 3, 250 (1964)
Trippett, Quart. Rev. 17, 406 (1963)
Macrcker in Organic Reactions vol. 14, p 270 (Ncw York, 1965)
Bestmann Angew. Chem. Internatl. Ed. 4, 583, 645 (1965)
Wadsworth et al. J. Org. Chem. 30 680 (1965); Bissing, ibid. 30,
1296 (1965).