tetrabutyl ammonium fluoride; water in tetrahydrofuran T=-78 - 20°C; Julia-Kocienski Olefination; 16 h; Inert atmosphere;

tetrabutyl ammonium fluoride in tetrahydrofuran T=-78 - 20°C; Julia-Kocienski Olefination; 16 h; Inert atmosphere; Overall yield = 76 percent;