Ruthenium(<scp>ii</scp>)-catalyzed C–H functionalizations on benzoic acids with aryl, alkenyl and alkynyl halides by weak-O-coordination
作者:Ruhuai Mei、Cuiju Zhu、Lutz Ackermann
DOI:10.1039/c6cc07773k
日期:——
C-H arylations of weakly coordinating benzoic acids were achieved by versatile ruthenium(II) catalysis with ample substrate scope. Thus, user-friendly ruthenium(II) biscarboxylate complexes modified with tricyclohexylphosphine enabled C-H functionalizations with aryl...
USE OF ARYL CHLORIDES IN PALLADIUM-CATALYZED C-H BOND FUNCTIONALIZATION
申请人:Daugulis Olafs
公开号:US20090012293A1
公开(公告)日:2009-01-08
A one-step method for efficiently converting carbon-hydrogen bonds into carbon-carbon bonds using chloroarenes and palladium catalysts is disclosed. This method allows faster introduction of complex molecular entities, a process that would otherwise require many more steps. This invention is particularly relevant for the organic synthesis of complex molecules such as, but not limited to, pharmacophores.
Ruthenium-Catalyzed C−H Arylation of Benzoic Acids and Indole Carboxylic Acids with Aryl Halides
作者:Marco Simonetti、Diego M. Cannas、Adyasha Panigrahi、Szymon Kujawa、Michal Kryjewski、Pan Xie、Igor Larrosa
DOI:10.1002/chem.201605068
日期:2017.1.12
Ru-catalyzed C-H arylation of benzoic acids with readily available aryl (pseudo)halides. The reaction, which does not require the use of silver salt additives, allows the arylation of previously challenging hindered benzoic acids and the use of generally unreactive ortho-substituted halorarenes. Furthermore, our new protocol can efficiently be applied to indolecarboxylicacids, thus allowing access to C7-
Heterocyclic amide compounds as apolipoprotein b inhibitors
申请人:Takasugi Hisashi
公开号:US20050038035A1
公开(公告)日:2005-02-17
The present invention relates to a compound of the formula (I) wherein R
1
is optionally substituted aryl; R
2
is optionally substituted aryl, optionally substituted heteroaryl, optionally substituted lower cycloalkyl, optionally substituted aryloxy, optionally substituted arylsulfonyl, vinyl, carbamoyl, protected carboxy or protected amino; ring A is bivalent residue derived from optionally substituted aryl or optionally substituted heteroaryl; X is bivalent residue derived from the group consisting of cycloalkene, naphthalene, unsaturated 5 or 6-membered heteromonocyclic group, each of which is optionally substituted, and substituted benzene; Y is -(A
1
)
m1
-(A
2
)
m2
-; and Z is direct bond or piperazine, or a salt thereof. The compound of the present invention and a salt thereof inhibit apolipoprotein B (Apo B) secretion and are useful as a medicament for prophylactic and treatment of diseases or conditions resulting from elevated circulating levels of Apo B.