[EN] TERRYLENE DIIMIDE AND QUATERRYLENE DIIMIDE COLORANTS [FR] COLORANTS À BASE DE DIIMIDE TERRYLÈNE ET DE DIIMIDE QUATERRYLÈNE
摘要:
The present invention relates to terrylene diimides which are substituted in the skeleton and their homologous quaterrylene diimides. The present invention also relates to specific uses of these compounds, especially to their use in an ink formulation for security printing applications, and to printing ink formulations for security printing and security documents comprising such compounds.
Chloroindate(iii) ionic liquids as catalysts for alkylation of phenols and catechol with alkenes
作者:H. Q. Nimal Gunaratne、Tobias J. Lotz、Kenneth R. Seddon
DOI:10.1039/c0nj00301h
日期:——
Chloroindate(III) ionic liquids are shown to be versatile catalysts for the alkylation of phenols with alkenes, giving high conversions to alkylated phenols with high selectivities.
There is provided a process for producing a phosphite of the formula (I):
1
wherein R
1
, R
2
, R
4
and R
5
each independently represent
a hydrogen atom, a C1-8 alkyl group, a C5-8 cycloalkyl group,
a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or
a phenyl group or a phenyl group substituted with an alkyl or an alkoxy group;
R
3
represents a hydrogen atom or a C1-8 alkyl group;
A represents a C2-8 alkylene group or a *—C(═O)— or *—C(═O)—R
7
— group in which R
7
represents a C1-8 alkylene group, and the bond marked with* is the bond connected with the oxygen atom; and
one of Y and Z represents a hydroxyl group, a C1-8 alkoxy group or a C7-12 aralkyloxy group and the other one represents a hydrogen atom or a C1-8 alkyl group.
Process for preparing 1-methoxy-2-propanol by reacting propylene oxide with methanol in the presence of a racemic catalyst which comprises an asymmetric polydentate (tetradentate) ligand complexed with a metal atom, where the complex has an approximately planar geometry.
Liquid crystal compositions, polymer networks derived therefrom and process for making the same
申请人:Goldfinger B. Marc
公开号:US20070228326A1
公开(公告)日:2007-10-04
The invention relates to compounds of Formula (I):
The invention further relates to liquid crystal compositions comprising compounds of Formula (I); compositions further comprising one or more chiral compounds; and polymer networks derived from the polymerization of the liquid crystal compositions. Another embodiment relates to processes for providing compounds of Formula (I).
Liquid crystal compositions and polymer networks derived therefrom
申请人:Goldfinger B. Marc
公开号:US20070267599A1
公开(公告)日:2007-11-22
The invention relates to compounds of formula (I):
wherein R
1
and R
2
are each independently selected from the group: H, F, Cl and CH
3
; n1 and n2 are each independently integers 3 to 20; q and r are each independently integers 0, 1 or 2, with the proviso that q+r is ≧1; D is a divalent chiral radical selected from the group:
wherein R
3
is a C1 to C6 straight or branched chain alkyl group; and each B
1
and B
2
is a divalent radical independently selected from the group: R
4
-substituted-1,4-phenyl, wherein R
4
is H, —CH
3
or —OCH
3
; 2,6-naphthyl; and 4,4′-biphenyl; with the provisos that when q+r=3, at least one of B
1
and B
2
is R
4
-substituted-1,4-phenyl; and when q+r=4, at least two of B
1
and B
2
are R
4
-substituted-1,4-phenyl. The invention further relates to liquid crystal compositions comprising compounds of formula (I) and polymer networks derived from the polymerization of the liquid crystal compositions.