Organozinc compounds derived from α-bromonitriles are readily prepared in solution in tetrahydrofuran (THF) and exist in the C metallated form. They condense normally with aldehydes and saturated ketones. A number of new β-hydroxy-nitriles are described. The addition of conjugated unsaturated ketones results in the formation of β-hydroxynitriles or ketonitriles, depending on the nature of the initial
衍生自α-
溴腈的
有机锌化合物很容易在
四氢呋喃(THF)中制成溶液,并以C
金属化形式存在。它们通常与醛和饱和酮缩合。描述了许多新的β-羟基腈。取决于初始
溴腈的性质,共轭不饱和酮的添加导致形成β-羟基腈或酮腈。
苯甲醛与
锌-α-
溴腈的反应的立体
化学不受溶剂性质的影响。与
丙二酸二乙酯亚烷基的缩合产生预期的1,4-加成产物。