公开(公告)号：US06184385B2

公开(公告)日：2001-02-06

申请号：US09292682

申请日：1999-04-16

申请人： Jayant S. Lodaya ,  Donald L. Fields, Jr. ,  Raymond T. Parker ,  Phillip B. Balderson

发明人： Jayant S. Lodaya ,  Donald L. Fields, Jr. ,  Raymond T. Parker ,  Phillip B. Balderson

IPC分类号： C07D41712

CPC分类号： C07D277/80

摘要： A process for the manufacture of a sulfenimide by reacting sulfenamide in slurry with a water immiscible organic solvent with an acid to yield a solvent slurry comprising sulfenimide product. The product is recovered from the solvent slurry by a method comprising the addition of water to the solvent slurry and the isolating of the product by a single filtration step. While water is added to the solvent slurry an azeotrope of solvent and water may be distilled under vacuum until substantially all solvent is separated from product and product becomes part of an aqueous slurry. Alternatively, water may be added to the solvent slurry while the resulting mixture is being agitated, followed by filtering the mixture in the single filtration step for recovery of product from the mixture.

摘要翻译： 通过使浆料中的次磺酰胺与与水不混溶的有机溶剂与酸反应制备亚磺酰亚胺的方法，以产生包含亚硫酰亚胺产物的溶剂浆料。 通过包括向溶剂浆料中加入水并通过单一过滤步骤分离产物的方法从溶剂浆料中回收产物。 当将水加入到溶剂浆料中时，溶剂和水的共沸物可以在真空下蒸馏，直到基本上所有溶剂与产物分离，并且产物成为含水浆料的一部分。 或者，可以在搅拌所得混合物的同时将水加入到溶剂淤浆中，然后在单过滤步骤中过滤混合物以从混合物中回收产物。