1129633-84-6

Upstream product

• 1041333-66-7 2-[(4-chlorophenyl)hydroxymethyl]buta-2,3-dienoic acid ethyl ester 
• 75-36-5 acetyl chloride 
• 104-88-1 4-chlorobenzaldehyde 

Downstream Products

• 1129633-28-8 ethyl (E)-2-ethynyl-3-(4-chlorophenyl)acrylate 
• 1428942-80-6 (1E,3E,NE)-N-(1-allyl-6-methyl-2-oxoindolin-3-ylidene)-4-(4-chlorophenyl)-3-(ethoxycarbonyl)buta-1,3-dien-1-amine oxide 
• 1428943-00-3 (1E,3Z,NE)-N-(1-allyl-6-methyl-2-oxoindolin-3-ylidene)-4-(4-chlorophenyl)-3-(ethoxycarbonyl)buta-1,3-dien-1-amine oxide 
• 1428942-76-0 (1E,3E,NE)-N-(1-allyl-7-bromo-2-oxoindolin-3-ylidene)-4-(4-chlorophenyl)-3-(ethoxycarbonyl)buta-1,3-dien-1-amine oxide 
• 1428942-97-5 (1E,3Z,NE)-N-(1-allyl-7-bromo-2-oxoindolin-3-ylidene)-4-(4-chlorophenyl)-3-(ethoxycarbonyl)buta-1,3-dien-1-amine oxide 
• 1428942-52-2 (E)-ethyl 3-((E)-1-allyl-5-bromo-2-oxoindolin-3-ylideneaminooxy)-2-(4-chlorobenzylidene)but-3-enoate 
• 1428942-51-1 (E)-ethyl 3-((E)-1-allyl-6-bromo-2-oxoindolin-3-ylidenea-minooxy)-2-(4-chlorobenzylidene)but-3-enoate 
• 1428942-57-7 (1E,3E,NE)-N-(1-benzyl-2-oxoindolin-3-ylidene)-4-(4-chlorophenyl)-3-(ethoxycarbonyl)buta-1,3-dien-1-amine oxide 
• 1428942-37-3 (E)-ethyl 3-((E)-1-benzyl-2-oxoindolin-3-ylideneaminooxy)-2-(4-chlorobenzylidene)but-3-enoate 

Relevant academic research and scientific papers

Copper(I)-catalyzed Cyclization Reactions of Ethyl (E)-α-Ethynyl-β-Aryl-α,β-Unsaturated Esters with N-Sulfonyl Azides: Synthesis of 1-Aminonaphthalene, 3-Aminobenzofuran, and 3-Aminothiobenzofuran Derivatives

A synthetic method for ethyl 4-(alkyl or arylsulfonamido)-2-naphthoates from ethyl (E)-α-ethynyl-β-aryl-α,β-unsaturated esters (1) and N-sulfonyl azides (2) in the presence of 2,6-lutidine in THF at 60 °C for 3 h was developed in one step, in which a copp

Stereoselective dabco-catalyzed synthesis of (E)-α-Ethynyl-α, β-unsaturated esters from allenyl acetates

(E)-α-Ethynyl-α,β-unsaturated esters were exclusively prepared in good to excellent yields from treatment of allenyl acetates with 10 mol % DABCO in DMF at room temperature.