109239-18-1

Upstream product

• 24680-50-0 4-methoxy-trans-cinnamaldehyde 
• 15542-26-4 (2E,4E)-ethyl 5-(4'-methoxyphenyl)penta-2,4-dienoate 

Downstream Products

• 49678-07-1 (2E,4E)-5-(4-methoxyphenyl)penta-2,4-dienal 
• 143816-05-1 (2E,4E)-5-(4-methoxyphenyl)penta-2,4-dien-1-yl acetate 

Relevant academic research and scientific papers

Expedient synthesis of fused azepine derivatives using a sequential rhodium(II)-catalyzed cyclopropanation/1-aza-Cope rearrangement of dienyltriazoles

A general method for the formation of fused dihydroazepine derivatives from 1-sulfonyl-1,2,3-triazoles bearing a tethered diene is reported. The process involves an intramolecular cyclopropanation of an α-imino rhodium(II) carbenoid, leading to a transien

Facile Preparation of α-Cyano-α,ω-Diaryloligovinylenes: A New Class of Color-Tunable Solid Emitters

An efficient Knoevenagel condensation reaction was used to construct a series of α-cyano-α,ω-diaryloligovinylenes, which show prominent fluorescence emission in the solid state. On investigating the effect of conjugation length on fluorescent properties,

Regioselective control in the palladium-catalyzed isomerization of methylenecyclopropylcarbinols using acetic acid as a reagent

Tuning the regioselectivity of the Pd-catalyzed isomerization of methylenecyclopropylcarbinols in acetic acid is achieved by a subtle choice of the ligand and/or solvent. When dioxane is used as the solvent, penta-2,4-dien-1-ols are formed, whereas when A

Novel Synthesis of Phenol Derivatives by Palladium-Catalyzed Cyclocarbonylation of 2,4-Pentadienyl Acetates

Phenyl acetates were selectively obtained in good yields by cyclocarbonylation of 2,4-pentadienyl acetates in the presence of NEt3, Ac2O, and a catalytic amount of palladium complexes such as PdCl2(PPh3)2 at 120-140 deg C under 50 atm of CO.No five-membered ring products were observed.A platinum complex PtCl2(PPh3)2 was also effective as a catalyst.The reaction of 5-phenyl-2,4-pentadienyl bromide with M(CO)(PPh3)3 (M = Pd or Pt) under CO gave the corresponding 6-phenyl-3,5-hexadienoyl complexes in a high yield, which in turn afforded 2-acetoxybiphenyl in 41-51percent yield on heating to 160 deg C under 50 atm of CO in the presence of NEt3 and Ac2O.Similar 3,5-hexadienoyl complexes are proposed to be intermediates in the catalytic cyclocarbonylation of 2,4-pentadienyl acetates.On the other hand, PdCl2(PPh3)2-catalyzed carbonylation of o-(bromomethyl)(1-alkenyl)benzenes in the presence of NEt3 and Ac2O gave 2-naphthyl acetates in moderate yields, while the reaction in the absence of Ac2O gave five-membered ring products such as 2-indanones or a tricyclic lactone by incorporation of one or two CO, respectively.