摘要:
The present invention provides multifunctional monomers, including, but not limited to include multifunctional methylene malonate and methylene beta-ketoester monomers; methods for producing the same; and compositions and products formed therefrom. The multifunctional monomers of the invention may be produced by transesterification or by direct synthesis from monofunctional methylene malonate monomers or methylene beta-ketoester monomers. The present invention further compositions and products formed from methylene beta-ketoester monomers of the invention, including monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).
摘要:
The present teachings are directed at 1,1-disubstituted alkene monomers (e.g., methylene beta-ketoester monomers), methods for producing the same, polymerizable compositions including a methylene beta-ketoester monomer, and polymers, compositions and products formed therefrom. The monomer preferably is a high purity monomer. In the method for producing the methylene beta-ketoesters of the invention, a beta-ketoester may be reacted with a source of formaldehyde. The methylene beta-ketoester monomers may be used in monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).
摘要:
The present invention provides multifunctional monomers, including, but not limited to include multifunctional methylene malonate and methylene beta-ketoester monomers; methods for producing the same; and compositions and products formed therefrom. The multifunctional monomers of the invention may be produced by transesterification or by direct synthesis from monofunctional methylene malonate monomers or methylene beta-ketoester monomers. The present invention further compositions and products formed from methylene beta-ketoester monomers of the invention, including monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).
摘要:
The present invention is related to a novel intermediates and processes which are useful in the preparation of certain antihistaminic piperidine derivatives of the formula wherein W represents —C(═O)— or —CH(OH)—; R1 represents hydrogen or hydroxy; R2 represents hydrogen; R1 and R2 taken together form a second bond between the carbon atoms bearing R1 and R2; n is an integer of from 1 to 5; m is an integer 0 or 1; R3 is —COOH or —COOalkyl wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched each of A is hydrogen or hydroxy; and pharmaceutically acceptable salts and individual optical isomers thereof, with the proviso that where R1 and R2 are taken together to form a second bond between the carbon atoms bearing R1 and R2 or where R1 represented hydroxy, n is an integer 0.
摘要翻译:本发明涉及一种新的中间体和方法,其可用于制备W代表-C(= O) - 或-CH(OH) - 的某些抗组胺型哌啶衍生物; R 1表示氢或羟基; R 2表示氢 R 1和R 2一起形成在具有R 1和R 2的碳原子之间的第二个键; n是1至5的整数; m是整数0或1; R 3是-COOH或-COO烷基,其中烷基部分具有 1至6个碳原子,并且是直链或支链的,每个A是氢或羟基; 其药学上可接受的盐和单独的光学异构体,条件是其中R 1和R 2一起形成在具有R 1和R 2的碳原子之间或其中R 1表示羟基的第二个键,n是整数0。
摘要:
An optically active epoxyenone derivative of the following formula (1): 1 wherein R1 is a methyl group, an ethyl group or a C3-10 branched, linear or cyclic alkyl group, and R2 is a phenyl group, a substituted phenyl group or a tert-butyl group.
摘要:
The present invention is related to a novel intermediates and processes which are useful in the preparation of certain antihistaminic piperidine derivatives of the formula 1 wherein W represents nullC(nullO)null or nullCH(OH)null; R1 represents hydrogen or hydroxy; R2 represents hydrogen; R1 and R2 taken together form a second bond between the carbon atoms bearing R1 and R2; n is an integer of from 1 to 5; m is an integer 0 or 1; R3 is nullCOOH or nullCOOalkyl wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched each of A is hydrogen or hydroxy; and pharmaceutically acceptable salts and individual optical isomers thereof, with the proviso that where R1 and R2 are ta to form a second bond between the carbon R1 and R2 or where R1 represented hydrox integer 0.
摘要:
The present invention is related to a novel intermediates and processes which are useful in the preparation of certain antihistaminic piperidine derivatives of the formula ##STR1## wherein W represents --C(.dbd.O)-- or --CH(OH)--;R.sub.1 represents hydrogen or hydroxy;R.sub.2 represents hydrogen;R.sub.1 and R.sub.2 taken together form a second bond between the carbon atoms bearing R.sub.1 and R.sub.2 ;n is an integer of from 1 to 5;m is an integer 0 or 1;R.sub.3 is --COOH or --COOalkyl wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched each of A is hydrogen or hydroxy; andpharmaceutically acceptable salts and individual optical isomers thereof,with the proviso that where R.sub.1 and R.sub.2 are ta to form a second bond between the carbon R.sub.1 and R.sub.2 or where R.sub.1 represented hydroxy integer 0.
摘要:
Rigid-rod macromonomers, and methods for preparing such macromonomers, having a polyaromatic backbone, solubilizing side groups, and reactive side groups are provided. The macromonomers are chemically incorporated into polymer systems to provide stronger, stiffened polymers.
摘要:
PHOTOCHROMIC 1,3,6,8-TETRA(LOWER)ALKYL-15,16-DIMETHYL-15,16-DIHYDROPYRENES, 15,16-METHYLENE-15,16-DIHYDROPYRENES, 15,16-DIHYDROPYRENES AND 1,3, 6,8-TETRA(LOWER)ALKYL-15,16-METHYLENE-15,16-DIHYDROPYRENES SUBSTITUTED IN ONE OR BOTH OF THE 2-AND 7-POSITIONS BENZOYL, ALKANOYL, ALKANOYLOXY, CYANO, NITRO, ALKYL, AHYDROXYALKYL, A-ACYLOXYALKYL, A-ISONITROSOALKYL, OR ACYLAMIDO GROUPS ARE PREPARED VIA SUBSTITUTION OF THE PARENT HYDROCARBON. A TYPICAL EMBODIMENT IS 2-ACETAMIDO-7NITRO-1,3,6,8,15,16,-HEXAMETHYL-15,16-DIHYDROPYRENE.