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Upstream product

• 2892-63-9 3,4-Dichlorocyclobut-3-ene-1,2-dione 
• 108-90-7 chlorobenzene 
• 551959-28-5 3,4-bis[(4-methoxyphenyl)thio]-3-cyclobutene-1,2-dione 
• 17151-48-3 tributyl(4-chlorophenyl)stannane 
• 1820-42-4 bis(4-chlorophenyl)acetylene 
• 67-64-1 acetone 

Relevant academic research and scientific papers

Silver catalyzed decarbonylative [3 + 2] cycloaddition of cyclobutenediones and formamides

As an important moiety in natural products, N,O-acetal has attracted wide attention in the past few years. An efficient method to construct N,O-acetal has been developed. Using silver catalyst, cyclobutenediones were smoothly converted to the corresponding γ-aminobutenolides in the presence of formamides, in which cyclobutenediones likely proceed with a key decarbonylative [3 + 2] cycloaddition process. In this way, a series of products with varied substituents were isolated in moderate yield and fully characterized.

Reactions of carbonyl compounds in basic solutions. Part 25. 1 the mechanism of the base-catalysed ring fission of 3,4-diphenylcyclobut-3-ene-1,2-diones

The rate coefficients for the base-catalysed ring fission of a series of substituted 3,4-diphenylcyclobut-3-ene-1,2-diones to give the corresponding (Z)-2-oxo-3,4-diphenylbut-3-enoic acids have been determined in 50% (v/v) aqueous dimethyl sulfoxide (DMSO

Pd-catalyzed, Cu(I)-mediated cross-couplings of bisarylthiocyclobutenediones with boronic acids and organostannanes

(Chemical Equation Presented) Bisarylthiocyclobutenedione 7 reacted smoothly with a variety of both organostannanes and (hetero)arylboronic acids in the presence of a catalytic amount of Pd and a stoichiometric amount of CuTC to produce symmetrical disubstituted cyclobutenediones in yields that range from 37 to 94% (18 examples).