107556-98-9

Upstream product

• 4894-61-5 trans-but-2-enyl chloride 
• 781-35-1 1,1-diphenylacetone 
• 4784-77-4 (E)-1-Bromo-2-butene 
• 3469-00-9 methyl 2,2-diphenylacetate 
• 117-34-0 2,2-diphenylacetic acid 
• 95151-35-2 3-buten-2-yl methyl carbonate 
• 525-06-4 diphenyl ketene 
• 103185-13-3 (E)-crotyl methyl carbonate 

Relevant academic research and scientific papers

mCPBA-mediated dioxygenation of unactivated alkenes for the synthesis of 5-imino-2-tetrahydrofuranyl methanol derivatives

A mCPBA-mediated, metal-free, intramolecular dioxygenation reaction of unactivated alkenes is reported. In the presence of m-chlorobenzoic peracid, different unsaturated amide substrates could be cyclized via epoxide intermediates, producing the corresponding 5-imino-2-tetrahydrofuranyl methanol products in up to 94% yield at room temperature.

Aerobic Allylation of Alcohols with Non-Activated Alkenes Enabled by Light-Driven Selenium-π-Acid Catalysis

A new organocatalytic protocol for the aerobic dehydrogenative allylation of alcohols using non-activated alkenes as the allylating reagent and ambient air as the terminal oxidant is established. Mechanistically, the procedure relies on the interplay of a diselane and a photoredox catalyst by means of a light-induced electron transfer process. Under optimized conditions, a broad range of both cyclic and acyclic ethers is accessed with very high functional group tolerance and excellent regioselectivity.

Platinum-catalyzed intramolecular hydroalkoxylation of γ- and δ-hydroxy olefins to form cyclic ethers

Reaction of 2,2-diphenyl-4-penten-1-ol with a catalytic mixture of [PtCl2(H2C=CH2)]2 (1 mol %) and P(4-C6H4CF3)3 (2 mol %) at 70 °C for 24 h led to the isolation of 2-

Palladium-Complex-Catalyzed Reactions of Ketenes with Allylic Carbonates or Acetates. Novel Syntheses of α-Allylated Carboxylic Esters and 1,3-Dienes

Diphenylketene and ethylphenylketene react with allylic carbonates or acetates in the presence of a catalytic amount of tetrakis(triphenylphosphine)palladium to give α-allylated esters or 1,3-dienes, respectively.For example, the reaction of diphenylketene with allyl methyl carbonate in DMF at 0 deg C gave methyl 2,2-diphenyl-4-pentenoate in 67percent yield.The reaction of diphenylketene with allyl acetate in benzene at 25 deg C gave 1,1-diphenyl-1,3-butadiene in 72percent yield.Marked solvent effects were observed.

Palladium-catalysed Reactions of Ketenes with Allyl Acetates or Allyl Carbonates: Novel Syntheses of 1,3-Dienes and Allylated Esters

The reaction of arylketenes with allyl acetates or allyl carbonates catalysed by tetrakis(triphenylphosphine)palladium selectively gives 1,3-dienes or allylated esters, respectively, in high yields.