3168-59-0Relevant articles and documents
C-H functionalization logic enables synthesis of (+)-hongoquercin A and related compounds
Rosen, Brandon R.,Simke, Leah R.,Thuy-Boun, Peter S.,Dixon, Darryl D.,Yu, Jin-Quan,Baran, Phil S.
, p. 7317 - 7320 (2013)
The specifics: A synthesis of the sesquiterpenoid antibiotic (+)-hongoquercin A using sequential site-specific C-H methylation and oxidation reactions is described. A key advancement toward this goal was the development of a ligand-accelerated C-H methylation reaction, and enabled the generation of a library of eight structurally diverse analogues. Copyright
Synthesis and characterization of π-extended porphyrins as potential precursors for the formation of columnar mesophases: Design principles for columnar mesophases need revision?
Herzog, Beat,Neier, Reinhard
, p. 29 - 44 (2011/06/18)
A series of meso-a bridged extended porphyrins substituted with long aliphatic chains were synthesized and fully characterized. Two different synthetic strategies were tested to obtain the target structures. The synthetic steps were optimized in order to obtain scalable routes for the production of sufficient quantities of η-extended porphyrins for material science studies. The porphyrins were obtained either as free bases or complexed with Ni II or CuII. UV-Vis spectroscopy and polarized light microscopy was used for the analysis of the material properties of the η-extended porphyrins. The results obtained with our compounds are not compatible with the results reported in the literature. ARKAT-USA, Inc.
Palladium-catalyzed methylation and arylation of sp2 and sp 3 C-H bonds in simple carboxylic acids
Giri, Ramesh,Maugel, Nathan,Li, Jiao-Jie,Wang, Dong-Hui,Breazzano, Steven P.,Saunders, Lindsey B.,Yu, Jin-Quan
, p. 3510 - 3511 (2007/10/03)
The use of preformed sodium carboxylates as substrates led to the first observation of facile Pd-insertions into sp3 β-C-H bonds in simple aliphatic acids. Consequently, Pd-catalyzed methylation and arylation of o-C-H bonds in benzoic acids and β-C-H bonds in aliphatic acids using either a phenylboronate, methylboronic acid, or ArI have been achieved via a C-H activation/C-C coupling sequence. Copyright