Studies on the Synthesis of <i>trans</i>-Dihydrodiols of Polycyclic Aromatic Thiaarenes as Potential Proximate Carcinogenic Metabolites: First Synthesis of <i>trans</i>-10,11-Dihydroxy-10,11-dihydroacenaphtho[1,2<i>-b</i>]benzo[<i>d</i>]thiophene and 6,7-Dihydroxy-6,7-dihydronaphtho[1,2<i>-b</i>]thiophene
作者:Jayanta K. Ray、Susmita Gupta、Gandhi K. Kar、Bidhan C. Roy、Jyh-Ming Lin、Shantu Amin
DOI:10.1021/jo005502+
日期:2000.12.1
(5) produced the phenolic compound 6 in 97% yield. Oxidation of the phenol with phenyliododiacetate followed by hydrolysis of the o-quinone monoketal 7 gave the o-quinone (8) in 86% yield. Stereoselective reduction of 8 with NaBH(4)/EtOH under oxygen afforded trans-10,11-dihydroxy-10,11-dihydroacenaphtho[1,2-b]benzo[d]thi oph ene(9) (orange yellow solid) in 55% yield. Compound 16 was obtained as a colorless