53942-65-7

Basic information

• Product Name: 2,4-di(1'-methyl-1'-ethylidene)cyclobutane-1,3-dione
• Synonyms: 2,4-di(1'-methyl-1'-ethylidene)cyclobutane-1,3-dione
• CAS NO: 53942-65-7
• Molecular Weight: 164.204
• Mol File: 53942-65-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 2,4-di(1'-methyl-1'-ethylidene)cyclobutane-1,3-dione(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-di(1'-methyl-1'-ethylidene)cyclobutane-1,3-dione(53942-65-7)
• EPA Substance Registry System: 2,4-di(1'-methyl-1'-ethylidene)cyclobutane-1,3-dione(53942-65-7)

Safety Data

• Hazardous Substances Data: 53942-65-7(Hazardous Substances Data)

Upstream product

• 79290-43-0 (3-ethoxy-1,1-dimethyl-2-propynyloxy)trimethylsilane 
• 128728-65-4 4-Diazo-2,2-dimethyl-8-oxa-bicyclo[3.2.1]oct-6-en-3-one 
• 40052-11-7 2-bromo-3-methyl-but-2-enoyl chloride 
• 96999-02-9 α-bromocyclopropanecarboxylic acid chloride 

Downstream Products

• 110-00-9 furan 
• 61244-93-7 methyleneketene 

Relevant articles and documents

Flash vacuum pyrolysis of 2-diazo-8-oxabicyclo[3.2.1]oct-6-en-3-ones. A new method for the preparation of propadienones

When diazoketones 3a and 3b are pyrolysed at 430°C and 10-4 torr, they undergo loss of N2 followed by Wolff rearrangement and loss of furan by retro Diels-Alder reaction to yield the desired propadienones 1(a,b). If argon is added to the pyrolysate mixture, these reactive compounds can be trapped under matrix isolation conditions at 22 K and observed by FTIR. Upon photolysis, 1b yields carbon monoxide and 2-butyne.

NEW SILICON-CONTAINING ALDOKETENES

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