Novel Insect-Repellent Coumarin Derivatives, Syntheses, and Methods of Use
申请人:Delaveau Jean
公开号:US20120329832A1
公开(公告)日:2012-12-27
This invention relates to novel coumarin derivative, formulations comprising same, and to methods of making and using these compounds and formulations, which are useful as repellents against insects and/or pests. The compounds also prevent illness and disease caused by insect/pest-borne vectors, and provide safer, more effective alternatives to existing repellents.
Photoredox-Catalyzed Redox-Neutral Decarboxylative C–H Acylations of Coumarins with α-Keto Acid
作者:Bin Sun、Yingying Wang、Jiayin Wang、Maojie Chen、Zhicheng Zhong、Jiayang Wang、Can Jin
DOI:10.1021/acs.orglett.3c00632
日期:——
A novel and green photocatalytic strategy for the synthesis of C-4-acylated coumarins with α-ketoacids and 3-nitrocoumarin has been developed. This operationally simple protocol works under mild reaction conditions, providing convenient access to 4-acyl coumarin derivatives. The control experimental results showed that the nitro radical produced by the cleavage of the C–N bond acts as an electron
FAHMY, A. A.;HAFEZ, T. S.;EL-FARARGY, A. F.;HAMAD, M. M., PHOSPH., SULFUR AND SILICON AND RELAT. ELEM., 57,(1991) N-4, C. 211-215
作者:FAHMY, A. A.、HAFEZ, T. S.、EL-FARARGY, A. F.、HAMAD, M. M.
DOI:——
日期:——
Experimental and theoretical assessment of benzopyran compounds as inhibitors to steel corrosion in aggressive acid solution
作者:Heba E. Hashem、Ahmed A. Farag、Eslam A. Mohamed、Eman M. Azmy
DOI:10.1016/j.molstruc.2021.131641
日期:2022.2
METHOD FOR PRODUCING POLYDIENES AND POLYDIENE COPOLYMERS WITH REDUCED COLD FLOW
申请人:Bridgestone Corporation
公开号:US20140187725A1
公开(公告)日:2014-07-03
A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with coumarin or a substituted coumarin compound.