Utilizing full potential of IBX, a mild, selective, and facile method has been developed for the direct conversion of olefins into the corresponding α-bromo ketones by using 1.1 equivalents each of o -iodoxybenzoic acid and tetraethylammonium bromide.
Synthesis oftrans-10,11-Dihydro-10,11-dihydroxy-5H-dibenz[b,f]azepine-5-carboxamide, a Major Metabolite of Carbamazepine
作者:Roland Heckendorn
DOI:10.1002/hlca.19870700730
日期:1987.11.4
has been studied. Among the reagents used, diisobutylaluminum hydride (DIBAH) was found to give the highest trans/cis diol ratio. This allowed the preparation of the important trans-diol metabolite 3 of carbamazepine (1).
从10,11-二氢-分两步制备5-氨基甲酰基-10,11-二氢-11-氧代-5 H -dibenz [ b,f ]氮杂-10-乙酸酯(6)的立体选择性研究了10-oxo-5 H -dibenz [ b,f ] azepine -5-carboxamide(4)。在使用的试剂中,发现二异丁基氢化铝(DIBAH)具有最高的反式/顺式二醇比。这允许制备卡马西平的重要的反式-二醇代谢物3(1)。
HECKENDORN, ROLAND, HELV. CHIM. ACTA, 70,(1987) N 7, 1955-1962