Tc. Sanders et al., THE CRYSTAL-STRUCTURE OF 2-FLUORO-1-(P-METHOXYPHENYL)-1-PENTEN-3-YNE,A FLUORINATED VINYLACETYLENE PREPARED VIA HORNER-WADSWORTH-EMMONS CONDENSATION, Journal of fluorine chemistry, 85(2), 1997, pp. 173-175
Horner-Wadsworth-Emmons condensation of (alpha-fluoropropargyl) phosph
onate ester 3 and p-anisaldehyde provides a new method for the synthes
is of monofluoro-conjugated enynes. Spontaneous crystallization of 4 y
ielded the Z isomer of 2-fluoro-1-(p-methoxyphenyl)-1-petnen-3-yne. A
comparison of bond angles and distances between 4 and vinylacetylene s
howed shorter bond distances along the enyne system in 4. (C) 1997 Els
evier Science S.A.