作者:Y.K. Sawa、N. Tsuji、K. Okabe、T. Miyamoto
DOI:10.1016/0040-4020(65)80054-0
日期:1965.1
Ketalization of 7-oxo-dihydrothebainone (the antipode of sinomeninone) gave 6,6; 7,7-diethylenedioxy and 6,7; 6,7-diethylenedioxy derivatives depending on the amount of toluene-p-sulphonic acid. Ullmann reaction of these ketal derivatives and sodium-liquid ammonia reduction followed by hydrolysis gave 4-desoxy-7-oxo-dihydrothebainone. Hydrogen peroxide oxidation of the foregoing compound and cyclization
7-氧代-二氢蒂巴酮(青藤烯酮的对映体)的缩酮化反应得到6,6;7,7-二亚乙基二氧基和6,7; 6,7-二亚乙基二氧基衍生物取决于甲苯-对-磺酸的量。这些缩酮衍生物的Ullmann反应和钠-液氨还原,然后水解,得到4-脱氧-7-氧代-二氢噻吩酮。前述化合物的过氧化氢氧化和二元酸的环化得到(-)-3-甲氧基-6-氧代-N-甲基-C-正吗啡喃。