sodium hexamethyldisilazane in tetrahydrofuran -78 deg C -> 23 deg C;

sodium hexamethyldisilazane in tetrahydrofuran T=23°C; Yield given;

potassium tert-butylate in diethyl ether T=23°C; effect of base, temperature, concentration and the rate of the "retro-Wittig" reaction of erythro and threo compounds on Z-, E-alkenes yield; experiments with pure isomers and crossover experiments with 4-chlorobenzaldehyde; Product distributionMechanism;

sodium hexamethyldisilazane in tetrahydrofuran T=23°C; Yield given;

sodium hexamethyldisilazane in tetrahydrofuran T=23°C; Yield given. Yields of byproduct given;

<b>With</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '1209227', constants.ctx, '0')">n-butyllithium</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '3587158', constants.ctx, '0')">hydrogen bromide</a>&nbsp;<b>in</b>&nbsp; <a href="#" onclick="return RXDsubstances(event, this, '102391', constants.ctx, '0')">tetrahydrofuran</a>;&nbsp;<a href="#" onclick="return RXDsubstances(event, this, '1730733', constants.ctx, '0')">hexane</a> <br />T=-45&deg;C;&nbsp;0.25&nbsp;h;&nbsp;<br /> &nbsp;