In Me2SO, an X-philic reaction took place between α-cyanobenzyl carbanion and CCl4. The intermediate dichlorocarbene was trapped by the primary product dicyanostilbene to give the alkene-carbene adduct, 1, 1-dichloro...In Me2SO, an X-philic reaction took place between α-cyanobenzyl carbanion and CCl4. The intermediate dichlorocarbene was trapped by the primary product dicyanostilbene to give the alkene-carbene adduct, 1, 1-dichloro - 2, 3 -dicyano -2, 3 -diphenylcyclopropane.展开更多
Eight Te-substituted di-n-butyltellurium bromides were synthesized. Their equilibrium acidities (pK(A)) were determined in DMSO at 25 degrees C and the thermodynamic stabilities of the corresponding tellurium ylide ca...Eight Te-substituted di-n-butyltellurium bromides were synthesized. Their equilibrium acidities (pK(A)) were determined in DMSO at 25 degrees C and the thermodynamic stabilities of the corresponding tellurium ylide carbanions were accordingly discussed.展开更多
文摘In Me2SO, an X-philic reaction took place between α-cyanobenzyl carbanion and CCl4. The intermediate dichlorocarbene was trapped by the primary product dicyanostilbene to give the alkene-carbene adduct, 1, 1-dichloro - 2, 3 -dicyano -2, 3 -diphenylcyclopropane.
文摘Eight Te-substituted di-n-butyltellurium bromides were synthesized. Their equilibrium acidities (pK(A)) were determined in DMSO at 25 degrees C and the thermodynamic stabilities of the corresponding tellurium ylide carbanions were accordingly discussed.
