نتایج جستجو برای: imine

تعداد نتایج: 2790  

Journal: :Physical Chemistry Chemical Physics 2021

A new π-conjugated molecule incorporates imine linkage and demonstrates p-type transport properties pronounced photo-conductive photo-gating effects.

Journal: :Science China. Materials 2023

In this paper, two types of conjugated, triazine-based covalent organic frameworks (COFs) with different connected linkages (imine bond and sp2-carbon-CN bond) are presented. The insignificant difference in the creates a remarkable their performance visible-light-driven hydrogen generation. fully π-conjugated two-dimensional (2D) COF showed an external quantum efficiency 13.48% at 450 nm, which...

Journal: :Chemical communications 2011
John S Hart Fraser J White Jason B Love

A tripodal iminopyrrole provides an environment suited to the encapsulation of water through hydrogen-bonding, and the formation of metal complexes by deprotonation and imine-pyrrole tautomerisation.

Journal: :Chemical communications 2007
Xiaohua Huang Jackie Y Ying

A siliceous mesocellular foam-immobilized Ru-TsDPEN complex exhibited excellent catalytic reactivity, enantioselectivity and reusability in the asymmetric transfer hydrogenation of an imine and ketones.

Journal: :Chemical communications 2005
Sibaprasad Bhattacharyya David F Dye Maren Pink Jeffrey M Zaleski

Tetradentate metalloenediynes with strong imine and weaker thioether coordination serve as a geometrically non-rigid switch to drive thermal Bergman cyclization.

Journal: :Dalton transactions 2011
Christine J Cooper Matthew D Jones Simon K Brayshaw Benjamin Sonnex Mark L Russell Mary F Mahon David R Allan

In this paper we report the synthesis and solid-state structures for a series of pyridine based Cu(II) complexes and preliminary data for the asymmetric Henry reaction. Interestingly, the solid-state structures indicate the incorporation of an alcohol into one of the imine groups of the ligand, forming a rare α-amino ether group. The complexes have been studied via single crystal X-ray diffract...

The reaction of diphenylcyclopropenone with several N-substituted hydroxylamine and primary amines are investigated. Most of these reactions led to ring opened or ring enlarged products, instead of the desired N-Oxide or imine. The reaction of cyclopropeneimine with peracid-another possible route to N-substituted cyclopropeneimine N-Oxide is studied. Most of the unexpected products are ide...

Journal: :Chemical communications 2014
F Nador F Novio D Ruiz-Molina

A bis-catechol ligand connected through an imine bond is used to fabricate switchable coordination polymer particles with pH-tuned spin transition responses.

Journal: :Chemical communications 2010
Marta Feroci Isabella Chiarotto Monica Orsini Achille Inesi

Electrogenerated N-heterocyclic carbene can behave as an organocatalyst in the Staudinger reaction (from imine and acyl chloride) in a very polar solvent, such as an ionic liquid.

Journal: :Organic & biomolecular chemistry 2007
Violina T Angelova Nikolay G Vassilev Asen H Koedjikov Ivan G Pojarlieff

The hydrolysis of iminohydantoins generates the same tetrahedral intermediate as that obtained in the cyclization of hydantoic acid amides to hydantoins. The ratio of the products of imine hydrolysis under kinetic control is determined by the relative height of the barriers of the breakdown of to amide or to hydantoin. Thus the partitioning of products unequivocally proves which is the rate det...

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