Chiral Auxiliary-Bearing Isocyanides as Synthons: Synthesis of Strongly Fluorescent (+)-5-(3,4-Dimethoxyphenyl)-4-[[<i>N</i>- [(4<i>S</i>)-2-oxo-4-(phenylmethyl)-2-oxazolidinyl]]carbonyl]oxazole and Its Enantiomer
作者:Jian S. Tang、John G. Verkade
DOI:10.1021/jo961554g
日期:1996.1.1
Both (4S-(+)-3-(isocyanoacetyl)-4-(phenylmethyl)-2-oxazolidinone (R)-1 and its enantiomer (S)-1 have been synthesized as potentially useful synthons in asymmetric synthesis. Optically active (+)-5-(3,4-dimethoxyphenyl)-4-[[N-[(4S)-2-oxo-4-(phenylmethyl)-2-oxazolidinyl]]carbonyl] oxazole (S)-2 and its enantiomer (R)-2 obtained by treating 3,4-dimethoxybenzoyl chloride with (S)-1 and (R)-1, respectively
(4S-(+)-3-(异氰基乙酰基)-4-(苯甲基)-2-恶唑烷酮(R)-1及其对映异构体(S)-1已被合成为不对称合成中潜在有用的合成子。 +)-5-(3,4-二甲氧基苯基)-4-[[N-[(4S)-2-oxo-4-(苯基甲基)-2-恶唑烷基]]羰基]恶唑(S)-2及其对映异构体(R)-2通过在非离子超碱P(MeNCH(2)CH(2))(3)存在下分别用(S)-1和(R)-1处理3,4-二甲氧基苯甲酰氯而获得N具有高的荧光量子产率,并且还给出了通过X射线方法获得的(S)-2的分子结构。