A new method for the reduction of iodosteroids to deoxysteroids has been developed using Zn, HCOOH and a catalytic amount of Aliquat 336 in water. In total, 13 iodosteroids were reduced in good to excellent yields. The higher solubilities of the substrates lead to the faster reactions, and the aqueous reaction was efficiently accelerated by granular polytetrafluoroethylene. The advantage of the aqueous system over eight organic solvents has also been demonstrated.
利用 Zn、HCOOH 和催化量的 Aliquat 336 在水中还原碘甾类化合物为脱氧甾类化合物的新方法已经开发出来。共还原出 13 种碘甾类化合物,收率从良好到极佳。底物的溶解度越高,反应速度越快,粒状聚四氟乙烯能有效加速水反应。水性体系相对于八种有机溶剂的优势也得到了证实。