Pd-Catalyzed Inter- and Intramolecular Carbene Transfer from Group 6 Metal−Carbene Complexes<sup>1</sup>
作者:Miguel A. Sierra、Juan C. del Amo、María J. Mancheño、Mar Gómez-Gallego
DOI:10.1021/ja002497i
日期:2001.2.1
intramolecular carbene transfer reactions has been studied. Thus, pentacarbonyl[(aryl)(methoxy)carbene]chromium(0) and tungsten complexes, 10, efficiently dimerize at room temperature in the presence of diverse Pd(0) and Pd(II)/Et(3)N catalysts. The effect of additives (PPh(3), AsPh(3), or SbPh(3)) on the nature and the isomeric ratio of the reaction products is negligible. The nature of the reaction products
Irradiation of divinyloxy compounds CH2CHOCH2[CH2OCH2]NCH2OCHCH2; n= 1–4} in the presence of 1,4-dicyanonaphthalene in benzene gave cis- and trans-cyclobutanocrown ethers in good yields.
辐照二乙烯基氧基化合物CH 2 CHOCH 2 [CH 2 OCH 2 ] N CH 2 OCH CH 2;n = 1-4},在苯中有1,4-二氰基萘的情况下,以良好的收率得到顺-和反-环丁酮冠醚。
FUMARIC ACID DIESTER-CINNAMIC ACID ESTER-BASED COPOLYMER, PRODUCTION METHOD THEREOF AND FILM USING THE SAME
申请人:TOSOH CORPORATION
公开号:US20150291751A1
公开(公告)日:2015-10-15
To provide a novel fumaric acid diester-cinnamic acid ester-based copolymer having a high molecular weight, which is expected to maintain excellent strength or ensures excellent toughness even when formed into a film, a method for efficiently producing the copolymer, and a film using the same. The fumaric acid diester-cinnamic acid ester-based copolymer contains a fumaric acid diester residue unit, a cinnamic acid ester residue unit having an alkyl group with a carbon number of 1 to 6, and a residue unit of a polyfunctional monomer having two or more radical polymerizable functional groups.
CURABLE EPOXY RESIN COMPOSITION AND CURED PRODUCT THEREOF, DIOLEFIN COMPOUND AND PRODUCTION METHOD THEREFOR, AND PRODUCTION METHOD FOR DIEPOXY COMPOUND
申请人:DAICEL CORPORATION
公开号:US20160122466A1
公开(公告)日:2016-05-05
An object of the present invention is to provide a curable epoxy resin composition, which is cured to provide a cured product having a high glass-transition temperature and particularly having excellent balance between heat resistance and transparency.
The present invention relates to a curable epoxy resin composition comprising an alicyclic epoxy compound (A) represented by the following formula (1) and a curing agent (B), or a curable epoxy resin composition comprising an alicyclic epoxy compound (A) represented by the following formula (1) and a curing catalyst (C).
wherein R
1
to R
22
, which may be the same or different, each represent a hydrogen atom, a methyl group or an ethyl group; and m and n, which may be the same or different, each represent an integer of 1 to 4.
Coating varnish composition and antifouling coating composition
申请人:HITACHI CHEMICAL CO., LTD.
公开号:EP0608132A1
公开(公告)日:1994-07-27
The invention provides a coating varnish composition comprising (A) a polymer obtained by polymerizing (a) at least one unsaturated acid anhydride and (b) at least one other unsaturated monomer, and (B) at least one additive selected from triazole derivatives, benzothiazole derivatives, thiadiazole derivatives, polyethers and carboxylic acid anhydride derivatives and an antifouling coating composition comprising said coating varnish and an antifouling agent containing a coppercompound as major component. Using such compositions the risks of poisoning associated with organotin copolymers are avoided and there are obtained coatings of a coating consuming property and antifouling performance comparable with those of the organotin copolymers which do not gel even when mixed with a copper compound.