نتایج جستجو برای: cyclohexene

تعداد نتایج: 865  

Journal: :Chemical Engineering Science 2023

Cylcohexanol is an essential bulk chemical that can be produced via cyclohexene hydration, a liquid-liquid two-phase reaction limited by the low rate and equilibrium conversion. Adding appropriate solvent most promising method to break through these limitations. However, in previous works was almost blindly selected without global consideration. In this work, rational multiscale proposed for ef...

Ahmad Shaabani, Peiman Mirzaei

Microwave-assisted three component cyclocondensation reactions of aldehydes, amides and dienophiles in the presence of acetic anhydride and para-toluenesulfonic acid as a catalyst to afford the highly substituted cyclohexene derivatives, in relatively good yields after several minutes are reported.

Enayatollah Sheikhhosseini, Malihe Faryabi

A simple and ecofriendly method was developed for the synthesis of arylmethylene[bis(5,5- dimethyl-3-hydroxy-2-cyclohexene-1-ones)] from the reaction of 5,5-dimethylcyclohexane- 1,3-dione and aromatic aldehydes in an aqueous media without any catalyst via Knoevenagel condensation followed by rapid Michael addition. No cyclization product was down to convert these enolic forms to xanthene deriva...

Journal: :Current Botany 2021

The current analysis was carried out to determine the chemical components in leaves of R. minima (L.) DC. GC-MS methanolic extract Minima indicated presence 19 compounds. prevailing compounds were 1Pentadecene (14.31), alpha. Bisabolol (10.39%), 1Heptadecene (9.78%), Cyclohexene,4 (1,5dimethyl1,4hexadienyl (7.06%), 3Hexadecene (Z) (8.10%), Caryophyllene (6.58%), Neophytadiene (5.16%), Humulene ...

Journal: :Tribology Letters 2023

Tribochemistry, which is another name for mechanochemistry driven by shear, deals with complex and dynamic interfacial processes that can lead to surface wear or formation of beneficial tribofilms. For better mechanistic understanding these processes, we investigated the reactivity tribopolymerization organic molecules different internal ring strain (methylcyclopentane, cyclohexane, cyclohexene...

Journal: :Agricultural and Biological Chemistry 1980

Journal: :International Journal of Chemical Kinetics 1990

Journal: :Brazilian Journal of Chemical Engineering 1998

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