4423-82-9

Upstream product

• 97732-83-7 3-tert-Butyl-3-(1-tert-butylethenyl)-1,2,4-trioxolan 
• 917-92-0 3,3-Dimethylbut-1-yne 
• 201230-82-2 carbon monoxide 
• 108-98-5 thiophenol 
• 106-45-6 para-thiocresol 
• 64-18-6 formic acid 

Downstream Products

• 79593-50-3 methyl 3,3-dimethyl-2-methylenebutanoate 

Relevant academic research and scientific papers

Palladium-Catalyzed Hydrocarboxylation of Alkynes with Formic Acid

A palladium-catalyzed hydrocarboxylation of alkynes with formic acid has been developed. The method provides acrylic acid and derivatives in good yields with high regioselectivity without the need to handle toxic CO gas. Nontoxic: Acrylic acids are an important chemical feedstock. The title reaction provides acrylic acid and derivatives in good yields with high regioselectivities without the need to handle toxic CO gas.

Regioselective control of the thiocarbonylation of terminal acetylenes with arylthiols catalyzed by Pd(II) and diphosphine ligands

Control of the regioselective thiocarbonylation of terminal acetylenes 1a-e with arylthiols 2a,b was successfully achieved by using Pd(OAc)2 and 1,4-bis(diphenylphosphino)butane (dppb), or 1,3-bis(diphenylphosphino)propane (dppp), as catalysts.

Reactions of Ozone with 2,3-Di-tert-butyl-1,3-butadiene in Solution and on Solid Supports

Reactions of the title compounds 1 with ozone in pentane, on silica gel, or on alumina gave no ozonides, but the corresponding mono- and diketone 3 and 4, mono- and di-epoxide 5 and 7, as well as epoxy ketone 6.Ozonation of 1 on polyethylene afforded mono-ozonide 9 and further ozonation of the latter gave an epoxy ozonide 10.