115562-91-9

Upstream product

• 88726-07-2 (E)-3-(p-tolylsulphonyl)but-3-en-2-one 
• 149-73-5 trimethyl orthoformate 

Downstream Products

• 115562-93-1 (E)-4-tosyl-4-(trimethylsilyl)butenone dimethyl ketal 
• 115563-05-8 (E)-4,4-dimethoxy-1-phenyl-2-tosylpent-2-en-1-one 
• 115563-00-3 (E)-5-(2-furyl)-5-hydroxy-4-tosylpent-3-en-2-one dimethyl ketal 
• 115563-01-4 (E)-5-hydroxy-5-(2-thienyl)-4-tosylpent-3-en-2-one dimethyl ketal 
• 115562-96-4 (E)-5-hydroxy-4-tosylpent-3-en-2-one dimethyl ketal 
• 115562-97-5 (E,E)-5-hydroxy-4-tosylocta-3,6-dien-2-one dimethyl ketal 
• 115563-09-2 3,4-bis-(methylthio)-4-tosylbutan-2-one dimethyl ketal 
• 115563-10-5 3,4-bis(methylthio)-4-tosylbutan-2-one 
• 115563-07-0 ethyl (E)-4,4-dimethoxy-2-tosylpent-2-enoate 
• 115563-03-6 (E)-2,2-dimethyl-6,6-dimethoxy-4-tosylhept-4-en-3-one 
• 115563-04-7 (E)-1-cyclohexyl-4,4-dimethoxy-2-tosylpent-2-en-1-one 
• 115591-05-4 trans-6-(iodomethyl)-2-methoxy-2-methyl-4-tosyl-Δ³-dihydropyran 
• 115563-06-9 (E)-4,4-dimethoxy-1-(4-methoxyphenyl)-2-tosylpent-2-en-1-one 
• 115563-08-1 (E)-N-phenyl-4,4-dimethoxy-2-tosylpent-2-enamide 

Relevant academic research and scientific papers

(E)-4-Lithio-4-tosylbutenone Dimethyl Ketal: A New and Versatile β-Acylvinyl Anion Equivalent in Organic Synthesis

The lithiation of (E)-4-tosylbutenone dimethyl ketal (12) with methyllithium at -20 deg C led to the new β-acylvinyl anion equivalent (E)-4-lithio-4-tosylbutenone dimethyl ketal (13).The treatment of intermediate 13 with different electrophilic reagents (