作者:Vladimir Alfonsov、Kirill Metlushka、Charles McKenna、Boris Kashemirov、Olga Kataeva、Viktor Zheltukhin、Dilyara Sadkova、Alexey Dobrynin
DOI:10.1055/s-2007-967941
日期:2007.2
An improved method for enantioseparation of racemic 1-(α-aminobenzyl)-2-naphthols has been developed by the reaction in situ of Betti base product mixtures with l-(+)-tartaric acid taken in a 1:1 ratio. The products of this reaction are (-)-1-(α-aminobenzyl)-2-naphthol tartrate, the acetal of benzaldehyde and tartaric acid as well as (+)-1,3-diaryl-2,3-dihydro-1H-naphth[1,2-e][1,3]oxazine, which can be easily separated by crystallization.
通过将Betti碱产品混合物与l-(+)-酒石酸以1:1的比例进行原位反应,已开发出一种改进的对映体1-(α-氨基苄基)-2-萘酚的对映体分离方法。该反应的产物是(-)-1-(α-氨基苄基)-2-萘酚酒石酸盐、苯甲醛和酒石酸的缩醛以及(+)-1,3-二芳基-2,3-二氢-1H-萘并[1,2-e][1,3]恶嗪,可通过结晶法轻松分离。