A New Approach to Spiroorthocarbonates and New Orthocarbonic Acid Derivatives New and simple processes have been developed, which give in good or excellent yields new diphenoxyalkanediyldioxymethanes, symmetrical and unsymmetrical spiroorthocarbonates, spirocyclic orthothiocarbamic acid esters, and acetals of urea by successive or simultaneous substitution of chloro and phenoxy groups contained in dichlorodiphenoxymethane.
一种针对螺环原
碳酸酯的新方法及新型原
碳酸衍
生物:开发出了新的简单工艺,能够以良好或优异的产率生成新型二苯氧基烷二基二氧亚甲基、对称及非对称螺环原
碳酸酯、螺环
硫代
氨基甲酸酯以及通过连续或同时置换二
氯二苯氧
甲烷中
氯和苯氧基团得到的
脲的
缩醛。