CAS: 4488-57-7; 5,6-Dihydrodicyclopentadiene

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CAS号77-73-6 二聚环戊二烯 | CAS号57051-32-8 8-Keto tricyclo... | CAS号6316-17-2 4,7-Methano-1H-... | CAS号1755-01-7 endo-dicyclopen... | CAS号542-92-7 环戊二烯 | CAS号142-29-0 环戊烯

📜八氢-4,7-亚甲基茚酮置于甲基锂体系中,用 甲醇,乙醚 作为反应溶剂,化学反应 3.0H,反应生成 5,6-二氢二环戊二烯
参考文献:Determination Of Dicyclopentadiene And Its Derivatives As Compounds Causing Odors In Groundwater Supplies
标题:Determination Of Dicyclopentadiene And Its Derivatives As Compounds Causing Odors In Groundwater Supplies
摘要:A Study Of Organic Pollutants Causing Odor Events In The Groundwater From The Lower Llobregat Aquifer System Has Been Conducted. This Aquifer Acts As Water Reserve Of Barcelona (Northeast Spain) When The Quality Of The Raw Water From The Llobregat River Is Low. Closed-Loop Stripping Analysis (Clsa),Purge-And-Trap (P&t),Sensory Gc,And Flavor Profile Analysis (Fpa) Have Been Used As Analytical Methodologies To Identify The Compounds Responsible For The Odor Events. Industrial Organochlorinated Solvents-Di-To Hexa Chlorinated Saturated And Unsaturated Hydrocarbons-Dicyclopentadiene (Dcpd) And Its Derivatives 8-Dihydrodcpd,Tetrahydrodcpd,And Adamantane (The Trimer Of Dcpd) Are Among The Most Significant Compounds Identified In The Groundwater. Dcpd With A Mean Concentration Of <1 Mu G/l In Almost All Analyzed Wells Is The Compound Causing The Odor Incidents,Regardless That Some Organochlorinated Solvents Such As 1,1,2-Trichloroethane,Trichloroethylene,And Perchloroethylene Might Be Even 2 Or 3 Orders Of Magnitude More Concentrated Than Dcpd. The Synthesis Of Dihydrodcpd Was Performed For Confirmatory Purposes. Trained And Untrained Panelists Have Established The Threshold Odor For This Compound In The Range Of 10-25 Ng/l. Although Further Research Is Needed,It Is Possible That An Illegal Landfill Closed In The 1970S Could Be The Origin Of The Different Pollutants Found.
DOI:10.1021/es960987Y

专利信息

专利号:US-4139569-A
优先权日:1977-11-14
标题:Vapor phase cracking of dicyclopentadiene and synthesis of 2,3-dihydroxycyclopentadiene and cyclopentene
发明人：LANE JR PARLEY C
权利人:GOODRICH CO B F
摘要:Improved process for vapor phase cracking of dicyclopentadiene and synthesis of 2,3-dihydrodicyclopentadiene therefrom. Initially, a feedstock consisting essentially of dicyclopentadiene and cyclopentene is subjected to thermocracking in the vapor phase, resulting in the conversion of dicyclopentadiene to monomeric cyclopentadiene. The presence of cyclopentene in the feed stock is believed to minimize coke formation on the interior walls of the cracking chamber. Subsequent selective catalytic hydrogenation of the resulting mixture converts substantially all of the monomeric cyclopentadiene to cyclopentene. The cyclopentene, prepared in the above manner, can be combined with additional quantitie;s of dicyclopentadiene and the resultant mixture subjected to dimerization in the liquid phase at elevated temperatures, thereby forming the monomer, 2,3-dihydrodicyclopentadiene.

专利号:US-3916017-A
优先权日:1969-12-24
标题 :Polycyclic compounds
发明人：SHEPHERD JR LAWRENCE H
权利人:ETHYL CORP
摘要:Tricyclo(5.2.1.02,6)dec-3-enes having an allylic group in the 8 or 9 position may be made by reacting a cyclopentadiene dimer with a 2-alkenyl magnesium compound co-reactive therewith to effect intermolecular addition, and then hydrolyzing the addition product so formed. These substituted tricyclo(5.2.1.02,6)dec-3enes are useful, inter alia, as monomers for the manufacture of EPT and a raw material for the synthesis of lubricating oil additives and flame retardants for flammable polymers.

专利号:CA-1100533-A
优先权日:1977-11-14
标 题:Process for vapor phase cracking of dicyclopentadiene and synthesis of 2,3-dihydrodicyclopentadiene therefrom

专利号:US-5585510-A
优先权日:1994-06-24
标 题:Ligated polyoxometalates and methods for their synthesis
发明人：MAZANY ANTHONY M
权利人:GOODRICH CO B F
摘要:Polyoxometalates are provided which are highly soluble in organic solvents, including monomer mixtures utilized in reaction injection molding. High solubility is obtained by organic moieties incorporated in the cation and anion of compounds having the formula [R1mER2m']nMxOyLz. These compounds provide improved solubility while maintaining catalyst activity within reaction injection molding formulations. A method is also provided for preparing these polyoxometalates within an aqueous acidic medium, wherein ligands are incorporated in the complex simultaneously with the formation of the polyoxometalate complex.

专利号:US-12114681-B2
优先权日:2018-06-04
标题:Fragrance and flavor materials
发明人：BLANDINO MAUREEN; TANUMA KENJI
权利人:TAKASAGO PERFUMERY CO LTD
摘要:The synthesis and application of compounds having unique and desired flavor and/or fragrance characteristics are provided herein. The compounds herein can be employed alone or incorporated as fragrance or flavor ingredients in fragrance or flavor compositions. The application is also directed to consumer products comprising such derivatives and/or fragrance or flavor compositions.

专利号:US-11236288-B2
优先权日:2018-06-04
标题:Fragrance materials
发明人：BLANDINO MAUREEN; LANKIN MICHAEL E
权利人:TAKASAGO PERFUMERY CO LTD
摘要:The synthesis and application of a compound having unique and desired fragrance characteristics is provided herein. The compound of the present disclosure can be employed alone or incorporated as a fragrance component in fragrance compositions. The application is also directed to consumer products comprising such compound and/or fragrance compositions.