The oxidative coupling of photogenerated alkyl radicals with readily available styrenes is disclosed. This visible-light-mediated method allows rapid access to a wide range of α-alkyl-acetophenones in good yields and with high functional group tolerance. In addition, the developed protocol features room temperature conditions, low photocatalyst loadings, and the use of dimethyl sulfoxide as nontoxic
FUNCTIONALIZED 1,2,4,5-TETRAZINE COMPOUNDS FOR USE IN BIOORTHOGONAL COUPLING REACTIONS
申请人:DEVARAJ Neal K.
公开号:US20150246893A1
公开(公告)日:2015-09-03
The present application relates to functionalized 1,2,4,5-tetrazine compounds. The compounds are useful in compositions and methods using bioorthogonal inverse electron demand Diels-Alder cycloaddition reactions for the rapid and specific covalent delivery of a “payload” to a ligand bound to a biological target.
Switchable Decarboxylative Heck-Type Reaction and Oxo-alkylation of Styrenes with <i>N</i>-Hydroxyphthalimide Esters under Photocatalysis
作者:Zi-Hao Xia、Chun-Lin Zhang、Zhong-Hua Gao、Song Ye
DOI:10.1021/acs.orglett.8b01268
日期:2018.6.15
The switchable visible-light-mediated decarboxylative Heck-type reaction and oxo-alkylation reaction of N-hydroxyphthalimide esters under photocatalysis were developed. Disubstituted or trisubstituted alkenes were obtained in good yield with high E-selectivity in the presence of Bronsted acid as the additive, while ketones resulted in the absence of the acidic additive.
HAHN B.; KOEPKE B.; VOSS J., LIEBIGS ANN. CHEM., 1981, NO 1, 10-19
作者:HAHN B.、 KOEPKE B.、 VOSS J.
DOI:——
日期:——
RELEASABLE CATIONIC LIPIDS FOR NUCLEIC ACIDS DELIVERY SYSTEMS
申请人:Zhao Hong
公开号:US20110229581A1
公开(公告)日:2011-09-22
The present invention is directed to releasable cationic lipids and nanoparticle compositions for the delivery of nucleic acids and methods of modulating an expression of a target gene using the same. In particular, the invention relates to cationic lipids including an acid labile linker, and nanoparticle compositions containing the same.