Non-covalently dendronized flavins as organocatalysts for aerobic reduction of olefins
摘要:
A variety of association complexes of synthetic flavin with diaminopyridine and melamine receptors are described in terms of synthesis, association properties, and catalytic activities for aerobic hydrogenation of olefins. The 1:1 association complex of lumiflavin 1 with 2,6-bis(acylamino)pyridine receptor bearing 3,4,5-trialkoxybenzyl ether dendron unit 2 acts as an efficient supramolecular organocatalyst for the aerobic reduction of styrene at ambient temperature under atmospheric air pressure. (C) 2013 Elsevier Ltd. All rights reserved.
Non-covalently dendronized flavins as organocatalysts for aerobic reduction of olefins
摘要:
A variety of association complexes of synthetic flavin with diaminopyridine and melamine receptors are described in terms of synthesis, association properties, and catalytic activities for aerobic hydrogenation of olefins. The 1:1 association complex of lumiflavin 1 with 2,6-bis(acylamino)pyridine receptor bearing 3,4,5-trialkoxybenzyl ether dendron unit 2 acts as an efficient supramolecular organocatalyst for the aerobic reduction of styrene at ambient temperature under atmospheric air pressure. (C) 2013 Elsevier Ltd. All rights reserved.
Hierarchical organization of a robust porphyrin cage self-assembled by hydrogen bonds
作者:Sunaina Singh、Amit Aggarwal、Christopher Farley、Brian A. Hageman、James D. Batteas、Charles Michael Drain
DOI:10.1039/c1cc11553g
日期:——
appended with four rigid hydrogen bonding motifs on the meso positions were synthesized and self-assembled into a cofacial cage with four complementary bis(decyl)melamine units in dry solvents. The hydrocarbon chains on the melaminemediate the formation of nanofilms on surfaces as the solvent slowly evaporates.
Coordination-polymeric triethanolamineperchlorato(triflato)metal inner complexes as additives for synthetic polymers
申请人:Wehner Wolfgang
公开号:US20090105387A1
公开(公告)日:2009-04-23
Stabilizer system for chlorinated polymers, especially PVC, comprising at least one coordination-polymeric triethanolamineperchlorato(triflato)metal inner complex comprising the monomer unit of the formula (A)
The stabilizer system may additionally comprise substituted cyanoacetylureas or/and 6-aminouracils or/and 3-aminocrotonic esters or/and hydantoins or/and monomeric or polymeric dihydropyridines or alkaline earth metal hydroxides or/and hydrotalcites or/and dawsonites or/and zeolites or/and glycidyl compounds or/and cyanamides or/and cyanoguanidines or/and melamines. In addition, phosphites or/and sterically hindered amines or/and NOR-HALS compounds may be present.
COORDINATION-POLYMERIC TRIETHANOLAMINEPERCHLORATO(TRIFLATO)METAL INNER COMPLEXES AS ADDITIVES FOR SYNTHETIC POLYMERS
申请人:Wehner Wolfgang
公开号:US20090131564A1
公开(公告)日:2009-05-21
Stabilizer system for chlorinated polymers, especially PVC, comprising at least one coordination-polymeric triethanolamineperchlorato(triflato)metal inner complex comprising the monomer unit of the formula (A)
The stabilizer system may additionally comprise substituted cyanoacetylureas or/and 6-aminouracils or/and 3-aminocrotonic esters or/and hydantoins or/and monomeric or polymeric dihydropyridines or alkaline earth metal hydroxides or/and hydrotalcites or/and dawsonites or/and zeolites or/and glycidyl compounds or/and cyanamides or/and cyanoguanidines or/and melamines. In addition, phosphites or/and sterically hindered amines or/and NOR-HALS compounds may be present.
A variety of association complexes of synthetic flavin with diaminopyridine and melamine receptors are described in terms of synthesis, association properties, and catalytic activities for aerobic hydrogenation of olefins. The 1:1 association complex of lumiflavin 1 with 2,6-bis(acylamino)pyridine receptor bearing 3,4,5-trialkoxybenzyl ether dendron unit 2 acts as an efficient supramolecular organocatalyst for the aerobic reduction of styrene at ambient temperature under atmospheric air pressure. (C) 2013 Elsevier Ltd. All rights reserved.