1235590-32-5

Basic information

• Product Name: C₂₅H₂₆O₆
• Synonyms: C₂₅H₂₆O₆
• CAS NO: 1235590-32-5
• Molecular Weight: 422.478
• Mol File: 1235590-32-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₂₅H₂₆O₆(CAS DataBase Reference)
• NIST Chemistry Reference: C₂₅H₂₆O₆(1235590-32-5)
• EPA Substance Registry System: C₂₅H₂₆O₆(1235590-32-5)

Safety Data

• Hazardous Substances Data: 1235590-32-5(Hazardous Substances Data)

Upstream product

• 14251-57-1 1,1-diphenyl-1,2-propadiene 
• 73500-20-6 2-Ethoxycarbonyl-but-2-enedioic acid 1-ethyl ester 4-methyl ester 

Relevant articles and documents

Lewis acid promoted reactions of ethenetricarboxylates with allenes: Synthesis of indenes and γ-lactones via conjugate addition/cyclization reaction

(Figure presented) Indenes are important core structures in organic chemistry. Few simple arylallenes have been used to construct indene skeletons by Friedel-Crafts reaction. Lewis acid catalyzed reaction of ethenetricarboxylates 1 and arylallenes has been examined in this study. The reaction of arylallenes and ethenetricarboxylate triesters with SnCl4 gave indene derivatives efficiently, via a conjugate addition/Friedel-Crafts cyclization reaction. On the other hand, the reactions of 1,1-diethyl 2-hydrogen ethenetricarboxylate and arylallenes or alkylallenes with SnCl4 at -78 °C or room temperature and subsequent treatment with Et3N gave γ-lactones. The reactions of triethyl ethenetricarboxylate and 1,1-dialkylallenes with SnCl4 at room temperature also gave γ-lactones.