Rapid Screening of a Receptor with Molecular Memory
摘要:
[graphics]Atropisomeric receptor 1 can change conformation and maintain the new conformation when heated and cooled in the presence of a guest molecule. This molecular memory can be used as a rapid method of screening potential guests. Heating atropisomeric diacid 1 with various hydrogen-bonding guests leads to a shift in the syn/anti ratio that could be easily monitored as it is stable at room temperature even in the absence of the guest molecules.
Sridharan; Karpagavalli; Muthusubramanian, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2004, vol. 43, # 10, p. 2243 - 2244
The invention relates to novel intermediates for the preparation of substituted triazines used in particular in the cosmetic, detergent, coating, plastics and textile industries. The invention also relates to the processes for preparation of said intermediates and for the conversion of the latter into final products.
The introduction of new noncovalent interactions to build functional systems is of fundamental importance. We here report experimental and theoreticalevidence that anion-πinteractions can contribute to catalysis. The Kemp elimination is used as a classical tool to discover conceptually innovative catalysts for reactions with anionic transition states. For anion-π catalysis, a carboxylate base and a
Introduction of a clean and promising protocol for the synthesis of β-amino-acrylates and 1,4-benzoheterocycles: an emerging innovation
作者:Garima Choudhary、Rama Krishna Peddinti
DOI:10.1039/c1gc15701a
日期:——
A highly efficient, elegant and simple procedure with exceptionally mild conditions has been proposed for the synthesis of β-amino-acrylate derivatives and an array of biologically and pharmaceutically active benzoheterocycles. The protocol offers a valuable alternative to known methods and will find applications in the field of green synthesis. The regio- and stereo-chemistry of the products were established by IR, NMR and single crystal X-ray analysis.
spectroscopy, as well as mass spectrometry and X-ray diffraction. Furthermore, they were tested toward their catalytic deperoxidation behavior and a significant difference between 4-heptyl hydroperoxide and cyclohexyl hydroperoxide was observed. In the case of 4-heptyl hydroperoxide, the selectivity toward the corresponding ketone was higher than with cyclohexyl hydroperoxide. DFT calculations performed
An amorphous amide compound of the formula
wherein R is selected from the group consisting of an alkyl group, an aryl group, an alkylaryl group, an arylalkyl group, and combinations thereof. An amorphous diamide compound of the formula
wherein R
1
is selected from the group consisting of an alkylene group, an arylene group, an alkylarylene group, an arylalkylene group, and combinations thereof.