申请人:The United States of America as represented by the United States
公开号:US05382665A1
公开(公告)日:1995-01-17
A process of preparing an oxazoline or oxazine compound of the formula ##STR1## wherein X is an atom selected from the group of oxygen and sulfur, R is selected from the group consisting of C.sub.1-10 alkyl, C.sub.1-10 fluoroalkyl, aryl and substituted-aryl, and n is 2 or 3 comprising ring-closing a compound of the formula ##STR2## wherein X is an atom selected from the group of oxygen and sulfur, R is selected from the group consisting of C.sub.1-10 alkyl, C.sub.1-10 fluoroalkyl, aryl, and substituted aryl, n is 2 or 3, and Y is a bromine or chlorine atom in the presence of a basic reagent consisting essentially of a fluoride salt supported on an inorganic solid substrate is disclosed together with the compounds, 5-bromomethyl-2-phenyl-1,3-oxazoline, 5-methylene-2-phenyl-1,3-oxazine and 4,4-dimethyl-2-vinyl-1,3-oxazoline.
本发明涉及一种制备公式##STR1##的噁唑啉或噁啉化合物的方法,其中X是氧和硫的群组中选择的原子,R是选择自C.sub.1-10烷基,C.sub.1-10氟代烷基,芳基和取代芳基的群组中的一种,n为2或3,包括在存在基性试剂的情况下,通过环闭合公式##STR2##的化合物制备,其中X是氧和硫的群组中选择的原子,R是选择自C.sub.1-10烷基,C.sub.1-10氟代烷基,芳基和取代芳基的群组中的一种,n为2或3,Y是溴或氯原子,所述基性试剂本质上包括负载在无机固体基质上的氟化物盐。同时,本发明还涉及化合物5-溴甲基-2-苯基-1,3-噁唑啉,5-亚甲基-2-苯基-1,3-噁啉和4,4-二甲基-2-乙烯基-1,3-噁唑啉。