Triphenylphosphine-catalysed conversion of maleic anhydride into acrylate esters
作者:Gareth R.A. Adair、Michael G. Edwards、Jonathan M.J. Williams
DOI:10.1016/s0040-4039(03)01272-3
日期:2003.7
Maleicanhydride has been converted into a range of acrylate esters on treatment with a suitable alcohol using triphenylphosphine as a catalyst.
使用三苯膦作为催化剂,用合适的醇处理后,马来酸酐已转化为一系列丙烯酸酯。
Photoinduced Diastereoselective Addition of Perfluoroalkyl Iodides to Acrylic Acid Derivatives for the Synthesis of Fluorinated Amino Acids
作者:Tomoko Yajima、Hajime Nagano
DOI:10.1021/ol0707620
日期:2007.6.1
Photoinduced diastereoselectiveaddition of perfluoroalkyl iodides in the presence of an aqueous solution of Na2S2O3 was an excellent method for iodoperfluoroalkylation of acrylic acidderivatives bearing a chiral auxiliary, with moderate to good stereoselectivities and with no detectable side products. The iodoperfluoroalkylation of N-acyloylcamphorsultam provided a convenient route for preparing
在Na 2 S 2 O 3水溶液的存在下光诱导非对映选择性地添加全氟烷基碘是一种很好的方法,用于对带有手性助剂的丙烯酸衍生物进行碘全氟烷基化,具有中等至良好的立体选择性,并且没有可检测的副产物。N-酰基磺基樟脑的碘全氟烷基化为制备手性含氟氨基酸提供了便利的途径。
MONOETHYLENICALLY UNSATURATED MONOMERS AND USES THEREOF
申请人:BOSTIK SA
公开号:US20210179576A1
公开(公告)日:2021-06-17
The invention relates to a monoethylenically unsaturated monomer of formula (I), and to the use thereof for producing a polymer. The invention also relates to the polymer obtained by polymerising said monomer, and to the use thereof in a composition for producing coatings.
HIGH REFRACTIVE INDEX POLYMER COMPOSITION FOR OPTHALMIC APPLICATIONS
申请人:Higgs Timothy Charles
公开号:US20130035414A1
公开(公告)日:2013-02-07
A monomer for a polymerisable composition is described, the monomer having the formula (I) wherein: R
1
is —H or alkyl; Z- is —O—, —NH— or —NR—, where -R is optionally substituted alkyl or C
5-10
aryl; Ar
1
and —Ar
2
are each independently optionally substituted C
5-10
aryl; R
2
is —H, or optionally substituted alkyl or C
5-10
aryl; and x and y are each independently 1 to 4. Also described are polymers formed from the composition, and ophthalmic lens products.
Preparation Comprising at Least One Conazole Fungicide
申请人:Koltzenburg Sebastian
公开号:US20080318785A1
公开(公告)日:2008-12-25
The invention relates to preparations, in particular plant-protective preparations which contain a mixture of at least two different active plant-protective substances, wherein a) at least one active substance is selected from a conazole group (active substance 1) and b) another active plant-protective substance (active substance 2) whose water solubility at a temperature of 20° C. is less than 20 g/l, c) at least one type of copolymer CP consisting of M monomers comprising α) at least one type of monoethylenically unsaturated monomer M1 comprising at least one sulphonic acid group and β) at least one type of neutral monoethylenically unsaturated monomer M2, wherein the quantitative ratio between the active substance 1 and the other active plant-protective substance 2 ranges from 1:10 to 10:1. Said invention also relates to novel copolymers CP which are embodied in the form of polymers consisting of at least three types of different monoethylenically unsaturated monomers M and comprise, in the polymerisation incorporated form, α) at least one type of monoethylenically unsaturated monomer M1 comprising at least one sulphonic acid group, β1) at least one type of neutral monoethylenically unsaturated monomer M2 whose water solubility at a temperature of 20° C. is less than 30 g/l and β2) at least one type of neutral monoethylenically unsaturated monomer M2b whose water solubility at a temperature of 20° C. is greater than 50 g/l.