One-Pot, Three-Component Synthesis of 5-Sulfenyl-2-iminothiazolines by Cross-Dehydrogenative C–S Coupling Using I<sub>2</sub>/DMSO in Open Air
作者:Chandan Bodhak、Animesh Pramanik
DOI:10.1021/acs.joc.9b00785
日期:2019.6.7
2-iminothiazoline through the cross-dehydrogenative coupling strategy via sp2 C–Hfunctionalization has been developed employing iodine as a catalyst and dimethyl sulfoxide as an oxidant. Utility of this sulfenylation technique has been well depicted through participation of various aryl and heterocyclic thiols. Significant features of this C–Hfunctionalizationstrategy include metal-free open air reaction conditions
A fluorous isatoic anhydride and isocyanate are synthesized and used as scavengers for amines in solution-phaseparallelsynthesis of urea, thiourea, and β-hydroxyamine analogs. The resulting fluorous derivatives are readily separated from the reaction mixture by solid-phase extractions (SPE) over FluoroFlash™ cartridges to give products with good purity. The SPE cartridges can be reused.
New fluorous tagging and scavenging reactants and methods of synthesis and use thereof
申请人:——
公开号:US20040073054A1
公开(公告)日:2004-04-15
The present invention includes methods and compositions for increasing the fluorous nature of an organic compound by reacting it with at least one fluorous compound to produce a fluorous tagged organic compound. The increased fluorous nature of the fluorous tagged organic compound can then be utilized to separate the fluorous organic compound from untagged reagents, reactants, catalysts and/or products derived therefrom. The resultant fluorous tagged organic compound can be subjected to subsequent chemical transformations, wherein the fluorous nature of the tagged compound is utilized to increase the ease of separation of the fluorous tagged organic compound from untagged reagents, reactants, catalysts and/or products derived therefrom, after each chemical transformation. The chemical transformations result in a second fluorous tagged organic compound wherein the fluorous nature of the second fluorous tagged organic compound can then be reduced by removing the fluorous group therefrom, thereby producing a second organic compound that may be employed as a pharmaceutical compound or intermediate, or a combinatorial library component.
Fluorous tagging and scavenging reactants and methods of synthesis and use thereof
申请人:Zhang Wei
公开号:US20060128957A1
公开(公告)日:2006-06-15
The present invention includes methods and compositions for increasing the fluorous nature of an organic compound by reacting it with at least one fluorous compound to produce a fluorous tagged organic compound. The increased fluorous nature of the fluorous tagged organic compound can then be utilized to separate the fluorous organic compound from untagged reagents, reactants, catalysts and/or products derived therefrom. The resultant fluorous tagged organic compound can be subjected to subsequent chemical transformations, wherein the fluorous nature of the tagged compound is utilized to increase the ease of separation of the fluorous tagged organic compound from untagged reagents, reactants, catalysts and/or products derived therefrom, after each chemical transformation. The chemical transformations result in a second fluorous tagged organic compound wherein the fluorous nature of the second fluorous tagged organic compound can then be reduced by removing the fluorous group therefrom, thereby producing a second organic compound that may be employed as a pharmaceutical compound or intermediate, or a combinatorial library component.