54678-04-5

Basic information

• Product Name: 4-Penten-2-one, 3,4-dimethyl- (6CI,7CI,9CI)
• Synonyms: 4-Penten-2-one, 3,4-dimethyl- (6CI,7CI,9CI)
• CAS NO: 54678-04-5
• Molecular Formula: C7H12O
• Molecular Weight: 112.16958
• Product Categories: ACETYLGROUP
• Mol File: 54678-04-5.mol
• Article Data: 8

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4-Penten-2-one, 3,4-dimethyl- (6CI,7CI,9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Penten-2-one, 3,4-dimethyl- (6CI,7CI,9CI)(54678-04-5)
• EPA Substance Registry System: 4-Penten-2-one, 3,4-dimethyl- (6CI,7CI,9CI)(54678-04-5)

Safety Data

• Hazardous Substances Data: 54678-04-5(Hazardous Substances Data)

Upstream product

• 141-79-7 4-methyl-pent-3-en-2-one 
• 60-29-7 diethyl ether 
• 14593-46-5 sodium tert-pentoxide 
• 77-78-1 dimethyl sulfate 
• 71-43-2 benzene 
• 513-35-9 2-methyl-but-2-ene 
• 83810-21-3 acide acetylsulfoacetique 
• 75-85-4 tert-Amyl alcohol 
• 75-36-5 acetyl chloride 
• 78-79-5 isoprene 
• 75-05-8 acetonitrile 
• 684-94-6 3,4-dimethyl-3-pentene-2-one 
• 684-02-6 4-chloro-3,4-dimethyl-2-pentanone 
• 121-69-7 N,N-dimethyl-aniline 

Downstream Products

• 90206-34-1 3,4-dimethyl-pent-4-en-2-one semicarbazone 
• 565-78-6 3,4-dimethyl-2-pentanone 

Relevant articles and documents

PROCESS FOR PREPARING PLATINUM ORGANOSILOXANE COMPLEXES USING AN ENONE ADDITIVE

A platinum organosiloxane complex is prepared by a process including combining A) a platinous halide; B) a ketone; C) an enone additive distinct from any other starting materials or rearrangement products thereof; and D) a polyorganosiloxane having, per molecule, 2 to 4 silicon bonded terminally unsaturated hydrocarbon groups having from 2 to 6 carbon. The platinum organosiloxane complex prepared by the process is useful as a hydrosilylation catalyst.

SYNTHESIS OF 1,1,2,2,3,3-HEXAMETHYL-4,5-BIS(METHYLENE)CYCLOPENTANE

An efficient synthesis of the title compound 14 is reported, which employs the ZnCl2/Et2O catalyzed addition of acetyl chloride (4) to 2-methyl-2-butene (5) and the ++2> cycloaddition of the 1,1,2,3-tetramethylallyl cation to 2,3-dimethyl-2-butene as key steps.

Halogen Epoxides, 7. Rearrangements during the Reaction of Substituted 2-Chloro- and 2,3-Dichlorooxiranes with Silver Tetrafluoroborate

Reactions of tert-butyl-substituted and of isopropyl-substituted chlorooxiranes with silver tetrafluoroborate have been examined.Dehalogenations in the 2-positions of 2-chloro-2-tert-butyl- (5) and of 2-chloro-2-isopropyl-substituted oxiranes (35) occurred without changes of the carbon skeletons.By contrast, dehalogenations in the 2-positions of 2-chloro-3-tert-butyl- (12) and of 2-chloro-3-isopropyloxiranes (35) afforded partly rearranged products by 1,2-methyl- and/or 1,2-hydride shifts to the corresponding α-ketocarbenium ions.