描述了异氰化物、叠氮化物和胺的共催化环化反应以获取喹唑啉衍生物。该协议具有高原子经济性、温和的反应条件、优异的产率和广泛的底物范围。这种级联反应涉及三个或四个 C-N 键和一个或两个环的形成。获得的喹唑啉-4( H )-亚胺被证明是用于进一步有价值转化的通用中间体。还发现钴催化剂可以从反应混合物中分离并重新使用。
METHOD OF IMPROVING STABILITY OF SWEET ENHANCER AND COMPOSITION CONTAINING STABILIZED SWEET ENHANCER
申请人:TACHDJIAN Catherine
公开号:US20120041078A1
公开(公告)日:2012-02-16
The present invention includes methods of stabilizing one or more sweet enhancers when they are exposed to a light source as well as liquid compositions containing one or more sweet enhancers and one or more photostabilizers.
The present invention includes compounds having structural formula (I), or pharmaceutically acceptable salts, solvate, and/or ester thereof. These compounds are useful as sweet flavor modifiers. The present invention also includes compositions comprising the present compounds and methods of enhancing the sweet taste of ingestible compositions. Furthermore, the present invention provides methods for preparing the compounds.
Method of improving stability of sweet enhancer and composition containing stabilized sweet enhancer
申请人:Tachdjian Catherine
公开号:US09000054B2
公开(公告)日:2015-04-07
The present invention includes methods of stabilizing one or more sweet enhancers when they are exposed to a light source as well as liquid compositions containing one or more sweet enhancers and one or more photostabilizers.