CAS: 1552-94-9; 5-Phenylpenta-2,4-Dienoic Acid

相似化合物

28010-12-0 140-10-3 621-82-9

上下游产品

piperidine pyridine (E)-3-phenylpropenal malonic acid buta-1,3-dien-1-ylbenzene 5-Phenylpentanoic acid 5-phenyl-penta-2,4-dienoyl chloride 2-bromo-5-phenyl-penta-2,4-dienoic acid

📜Methyl 5-Phenylpenta-2,4-Dienoate置于水,Potassium Hydroxide体系中,用 甲醇 用作溶剂,化学反应 48.0H,反应生成5-苯基戊烷-2,4-双酸
参考文献:对映选择性氧化还原-发散性手性磷酸催化醌diels-Alder反应.
标题:对映选择性氧化还原-发散性手性磷酸催化醌diels-Alder反应.
摘要:据报道,通过手性磷酸催化的二烯氨基甲酸酯的醌diels-Alder反应,可以有效地对四氢萘-1,4-二酮和二氢萘-1,4-二醇进行对映选择性构建.二烯上保护基的性质是成功实现高对映选择性的关键.通过使用足够量的醌来控制发散的"氧化还原"选择性.单个氧化还原异构体可以在不破坏对映选择性的情况下进行可逆的氧化还原转换.
Doi:10.1002/anie.202000838

专利信息

专利号:US-4499248-A
优先权日:1983-05-12
标题:Poly-diisopropenyl benzene synthesis
发明人：JALICS GEORGE
权利人:GOODYEAR TIRE & RUBBER
摘要:It has been unexpectedly found that meta-diisopropenyl benzene can be polymerized into poly-m-diisopropenyl benzene with a relatively narrow molecular weight distribution and with only a small degree of crosslinking (gel formation) if done in the presence of at least one alpha-olefin containing from 2 to 12 carbon atoms in tetrahydrofuran (solvent) at low temperatures employing an alkyl lithium initiator. The poly-m-diisopropenyl benzene produced by employing this technique has an isopropenyl moiety on almost every diisopropenyl benzene repeat unit in the polymer. This polymer is particularly useful since its pendant isopropenyl groups can be further reacted with other compounds leading to polymers with various functionalities. This technique can also be employed in the synthesis of copolymers containing repeat units derived from meta-diisopropenyl benzene and one or more other monomers. The copolymers synthesized using the process of this invention contain an essentially quantitative number of unreacted isopropenyl groups on the meta-disisopropenyl benzene repeat units in the polymer chain.

专利号:US-4399240-A
优先权日:1981-12-30
标 题:Removal of acrylonitrile from latex with saturated heterocyclic amines
发明人：SENYEK MICHAEL L
权利人:GOODYEAR TIRE & RUBBER
摘要:Acrylonitrile is a monomer that is widely used in the synthesis of a vast variety of polymers. Undesirable quantities of unpolymerized residual acrylonitrile are often present in these acrylonitrile polymers. This residual or free acrylonitrile dissolved in an acrylonitrile polymer and/or its emulsifier system and the water phase used in its polymerization can be reduced significantly in concentration by treatment with saturated 6 to 7 membered ring heterocyclic amines. These amines react with acrylonitrile by a nitrogen-cyanoethylation reaction which results in the formation of a tertiary amino linkage.

专利号:US-4365027-A
优先权日:1981-12-28
标 题 :Removal of acrylonitrile from latex with oximes
发明人：SENYEK MICHAEL L; COSTANZA ALBERT J
权利人:GOODYEAR TIRE & RUBBER
摘要:Acrylonitrile is a monomer that is widely used in the synthesis of a vast variety of polymers. Undesirable quantities of unpolymerized residual acrylonitrile are often present in these acrylonitrile polymers. This residual or free acrylonitrile dissolved in an acrylonitrile polymer and/or its emulsifier system and the water phase used in its polymerization can be reduced significantly in concentration by treatment with oximes. Oximes react with acrylonitrile by an oxygen-cyanoethylation reaction which results in the formation of a cyanoethyl oximino ether linkage.

专利号:US-11498129-B2
优先权日:2015-12-09
标题:Methods for synthesizing silver nanoplates and noble metal coated silver nanoplates and their use in transparent films for control of light hue
发明人：HU YONGXING; Hong Alexander Seung-il; LI YING-SYI; YANG XIQIANG; CAO YADONG; VIRKAR AJAY
权利人:C3NANO INC; C3 NANO INC
摘要:Desirable methods for larger scale silver nanoplate synthesis are described along with methods for applying a noble metal coating onto the silver nanoplates to form coated silver nanoplates with a desirable absorption spectrum. The silver nanoplates are suitable for use in coatings for altering the hue of a transparent film. The hue adjustment can be particularly desirable for transparent conductive films.

专利号:US-11529298-B2
优先权日:2019-08-28
标题:Cosmetic composition and its use, dermocosmetic formulation
发明人：CARDOSO DE LIMA ERINE; BEZERRA TALITHA FARINA; FELIPE DE OLIVEIRA STEHLING LUIZ; MASIERO SILVANA
权利人:LUXBIOTECH FARM LTDA
摘要:The present invention relates to dermocosmetic formulations for use in combating skin aging, especially photoaging. The present invention promotes the increase of the synthesis of collagen, elastin and glycosaminoglycans (GAG), in addition to significantly increase the activity of the superoxide dismutase enzyme (SOD) and the cell proliferation.

专利号:US-3879353-A
优先权日:1971-09-01
标题:Linear copolymers having pendant peroxycarbonate ester functionality, their synthesis and use
发明人：CRAWFORD JAMES E
权利人:OWENS ILLINOIS INC
摘要:Multifunctional peroxycarbonate esters are prepared by reacting a salt of a linear copolymer, having acid functionality, with a carbonate under oxidizing conditions. The process of this invention can be adapted to permit the in situ generation of the peroxycarbonate ester in a suspension, solution or emullsion polymerization system. Peroxycarbonate esters prepared in this manner are useful as initiators in the free radical polymerization of ethylenically unsaturated monomers, as well as agents for the cross-linking of linear polymeric chains.