Stereospecific Synthesis of 3,4-Dihydro-2<i>H</i>-naphtho-1,4-oxazin-2-ones by Unification of Benzoxepine-4-carboxylates with Chiral Amino Acid Ethyl Esters
作者:Veera Prasad Kasagani、Siva Hariprasad Kurma、China Raju Bhimapaka
DOI:10.1021/acs.joc.9b02624
日期:2020.3.6
A novel and efficient stereocontrolled method has been developed for the preparation of chiral 3,4-dihydro-2H-naphtho[1,2-b][1,4]oxazin-2-ones by the reaction of benzoxepine-4-carboxylates with chiral amino acid ethyl esters for the first time. The chiral 3,4-dihydro-2H-naphtho-1,4-oxazinones have been achieved in one step by the formation of C-N, C-C, and C-O bonds.
已开发出一种新颖有效的立体控制方法,该方法可通过苯并氧杂庚酸酯-4-羧酸酯与手性化合物的反应制备手性3,4-二氢-2H-萘并[1,2-b] [1,4]恶嗪-2-酮。首次手性氨基酸乙酯。通过形成CN,CC和CO键,一步即可获得手性的3,4-二氢-2H-萘-1,4-恶嗪酮。