Stereoinversion in the diastereoselective acylation of benzoxazine derivatives with 2-aryloxypropionyl chlorides
作者:S. A. Vakarov、M. A. Korolyova、D. A. Gruzdev、M. G. Pervova、G. L. Levit、V. P. Krasnov
DOI:10.1007/s11172-019-2550-z
日期:2019.6
A comparative study of the kinetic resolution of racemic derivatives of 3,4-dihydro-3-methyl-2H-[1,4]benzoxazine using racemic 2-aryloxypropionyl chlorides was performed. It was found that the acylation of racemic amines with racemic 2-(1-naphthyloxy)propionyl chloride leads to amides enriched with (3R*,2′R*)-diastereomers, while the acylation with 2-phenoxypropionyl chloride gives predominantly (3R*
使用外消旋 2-芳氧基丙酰氯对 3,4-二氢-3-甲基-2H-[1,4] 苯并恶嗪的外消旋衍生物进行动力学拆分的比较研究。发现外消旋胺与外消旋 2-(1-萘氧基)丙酰氯的酰化产生富含 (3R*,2'R*)-非对映异构体的酰胺,而与 2-苯氧基丙酰氯的酰化主要产生 (3R* ,2'S*)-酰胺。对 COSMO-CH2Cl2-B3LYP-D3-gCP/def2-TZVP//B3LYP-D3-gCP/def2-SVP 理论水平的动力学拆分过程进行了量子化学建模。计算结果与实验数据吻合良好。