bifunctional organocatalyst. TEACB (0.5 mol %) was found to catalyze the addition of trimethylsilyl cyanide (TMSCN) to carbonyl compounds under solvent-free conditions at room temperature with very short reaction times. A wide variety of aldehydes and ketones were transformed into the corresponding cyanohydrin trimethylsilyl ethers in high to quantitative yields.
邻苯二甲
酰亚胺和氢氧化四乙
铵通过不寻常的途径反应,得到2-(
氨基甲酰基)
苯甲酸四乙
铵(
TEACB),作为双功能有机催化剂,这是令人感兴趣的。发现
TEACB(0.5mol%)在无溶剂条件下在室温下以非常短的反应时间催化向羰基化合物中添加三甲基甲
硅烷基
氰化物(TMSCN)。各种各样的醛和酮可以高产率或定量产率转化为相应的
氰醇三甲基甲
硅烷基醚。