Sz. Zhu et al., A CONVENIENT SYNTHESIS OF A NEW PUSH-PULL ALKENES - BETA-ALKOXYL VINYL TRIFLUOROMETHYL SULFONES, Tetrahedron letters, 39(29), 1998, pp. 5265-5268
A new push-pull alkene, beta-ethoxy vinyl trifluoromethyl sulfone EtOC
H=CHTf. was prepared from the reaction of trifluoromethanesulfonyl chl
oride with vinyl ether in the presence of pyridine. Similarly, 4-trifl
uoro-methyl sulfonyl 2,3-dihydrofuran and 5-trifluoro- methyl sulfonyl
2,3-dihydro-2H-pyran were prepared in moderate yields. (C) 1998 Publi
shed by Elsevier Science Ltd. All rights reserved.