18913-75-2

Upstream product

• 606-23-5 1H-indene-1,3(2H)-dione 
• 3218-36-8 4-Phenylbenzaldehyde 
• 1122-91-4 4-bromo-benzaldehyde 
• 98-80-6 phenylboronic acid 

Relevant academic research and scientific papers

Three-component suzuki–knoevenagel synthesis of merocyanine libraries and correlation analyses of their oxidation potentials and optical band gaps

The Suzuki coupling Knoevenagel condensation one-pot synthesis of boronic acids/esters, (hetero)aromatic bromo aldehydes and methylene active compounds is a highly practical consecutive three-component process to provide substance libraries with 60 donor-π-bridge-acceptor molecules, i.e., merocyanines in a broader sense, in moderate to excellent yield. As already seen with the naked eye, a broad variation of the optical properties becomes accessible using this practical synthetic tool. More systematically, correlation analyses upon plotting the optical band gaps against the first oxidation potentials of redox active systems of consanguineous series furnishes linear correlations and, by extension, two parameter plots (oxidation potential and emission maximum) planar correlations with the optical band gaps.

Rapid and selective synthesis of spiropyrazolines and pyrazolylphthalides employing Seyferth-Gilbert reagent

An unexpected product-selectivity in the reaction of 2-arylideneindane-1,3-dione with dimethyl diazomethylphosphonate leading to the formation of two different types of products is reported. The reaction carried out in acetone in the presence of catalytic amount of cesium fluoride afforded spiropyrazoline phosphonates via 1,3-dipolar cycloaddition reaction, whereas the reaction in methanol yielded an interesting class of pyrazolylphthalides. This strategy provides an efficient alternative method for the construction of pyrazolylphthalides, and moreover, the process is general, works under mild conditions, and exhibits high functional group compatibility.

Microwave-promoted, catalyst-free, multi-component reaction of proline, aldehyde, 1,3-diketone: One pot synthesis of pyrrolizidines and pyrrolizinones

One-pot, three-component preparation of the pyrrolizidine and pyrrolizinone derivatives in moderate to good yield is reported. The synthesis is facilitated by microwave irradiation of proline, aromatic aldehyde, and 1,3-diketone such as 2-arylmethylene-in

Design, synthesis and 3D-QSAR studies of novel 1,4-dihydropyridines as TGFβ2/Smad inhibitors

Targeting TGFβ2/Smad signaling is an attractive strategy for several therapeutic applications given its role as a key player in many pathologies, including cancer, autoimmune diseases and fibrosis. The class of b-annelated 1,4-dihydropyridines (DHPs) repr

Fenbufen, a new anti inflammatory analgesic: synthesis and structure activity relationships of analogs

100 analogs of fenbufen were prepared and tested using the carrageenan, polyarthritis, and UV erythema anti inflammatory tests and the 2 phenyl 1,4 benzoquinone writhing and inflamed paw pressure analgesic tests. Only 3 retained the same full spectrum of activity as fenbufen: dl 4 (4 biphenylyl) 4 hydroxybutyric acid, dl 4 (4 biphenylyl) 1,4 butanediol, and 4 biphenylacetic acid. Fenbufen had the same spectrum of activity as aspirin, phenylbutazone, and indomethacin in the 5 tests. In addition, dose response derived potencies show fenbufen more potent than aspirin and at least as potent as phenylbutazone in all 5 tests. Two related compounds were generally similar.