357333-23-4

Upstream product

• 1180663-12-0 (3-methyl-3-((2-methylallyl)oxy)but-1-yn-1-yl)benzene 
• 1719-19-3 2-Methyl-4-phenyl-3-butyn-2-ol 
• 78-84-2 isobutyraldehyde 

Downstream Products

• 357333-19-8 methyl (E)-4,4,7-trimethyl-5-phenyl-2,5,6-octatrienoate 
• 189208-89-7 1,1-bismethoxycarbonyl-3,3,6-trimethyl-4-phenyl-1,4,5-heptatriene 
• 357333-20-1 1,1-dicyano-4-phenyl-3,3,6-trimethyl-1,4,5-heptatriene 
• 1180663-22-2 2-isopropylidene-4-methyl-3-phenylpent-3-enal 
• 1180663-31-3 2,2,5-trimethyl-3-phenylhexa-3,4-dien-1-ol 

Relevant academic research and scientific papers

Cationic rhodium(I)-dppf complex-catalyzed olefin isomerization/propargyl claisen rearrangement/carbonyl migration cascade

(Chemical Equation Presented) We have established that a cationic rhodium(I)-dppf complex catalyzes isomerizations of allyl propargyl ethers to allenic aldehydes in good yields from room temperature to 40°C. On the other hand, carbonyl migration reactions

Allenyl(vinyl)methane photochemistry. Photochemistry of γ-(3-methyl-1-phenyl-1,2-butadienyl)-substituted α,β-unsaturated ester and nitrile derivatives

The direct photolyses of the γ-(3-methyl-1-phenyl-1,2-butadienyl)-substituted α,β-unsaturated esters and nitriles gave the bicyclo[2.1.0]pentanes, cross-conjugated trienes, and several intramolecular products, while the triplet-sensitization led to the former two compounds. It was found that the photochemoselectivity depended on the substituents on the vinyl group and would be controlled by the energy using the triplet sensitizers.

Allenyl(vinyl)methane photochemistry. Photochemistry of 4,4,7-trimethyl-5-phenyl-2,5,6-octatrienate derivatives

The direct photolysis of the diester in the title compounds gave a cross conjugated triene, [2+2] cycloadduct, pyran, and cyclopropene. The direct photolysis of the monoester afforded a cross conjugated triene, [2+2] cycloadduct, cyclopropene, and its Z-form. The sensitized photolysis of these esters afforded the trienes and [2+2] cycloadducts, which were derived from the triplet excited state of the different chromophores.