Catalysis by Organic Solids. Stereoselective Diels−Alder Reactions Promoted by Microporous Molecular Crystals Having an Extensive Hydrogen-Bonded Network
نویسندگان
چکیده
منابع مشابه
Nitrogen and Hydrogen Adsorption by an Organic Microporous Crystal**
Quick on the uptake: Following its identification during a targeted search, the intriguing crystal structure of 3,3',4,4'-tetra(trimethylsilylethynyl)biphenyl was investigated. Simple removal of the included solvent provides an organic crystal with an open microporous structure that has a striking similarity to that of zeolite A (see picture). Reversible adsorption of nitrogen and hydrogen gase...
متن کاملAn optimized intermolecular force field for hydrogen-bonded organic molecular crystals using atomic multipole electrostatics
We present a re-parameterization of a popular intermolecular force field for describing intermolecular interactions in the organic solid state. Specifically we optimize the performance of the exp-6 force field when used in conjunction with atomic multipole electrostatics. We also parameterize force fields that are optimized for use with multipoles derived from polarized molecular electron densi...
متن کاملStereoselective organic reactions promoted by immobilized chiral catalysts in continuous flow systems
The immobilization of the catalyst on a support with the aim of facilitating the separation of the product from the catalyst, and thus the recovery and recycling of the latter, can be regarded as an important improvement for a catalytic process. However, a system where a catalyst must not be removed from the reaction vessel is even more attractive: in continuous flow methods the immobilized cat...
متن کاملProton Transfers in Hydrogen Bonded Organic Crystals at Low Temperatures
The tunneling dynamics of protons involved in hydrogen bonds between carboxylic acid dimers is determined using picosecond transient grating techniques.
متن کاملPromotion of organic reactions by interfacial hydrogen bonds on hydroxyl group rich nano-solids.
Surface hydroxyl group rich nano-structured solids dramatically increase the rate of several organic reactions; such effect is attributed to the formation of interfacial hydrogen bonds between the surface hydroxyl groups and the reactants; this catalytic effect is versatile and applicable for a broad range of reaction conditions.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 1997
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja964198s