920-08-1

Basic information

• Product Name: 4-Hexenal, 2,2-dimethyl-, (E)-
• Synonyms: 4-Hexenal, 2,2-dimethyl-, (E)-;(E)-2,2-Dimethyl-4-hexenal
• CAS NO: 920-08-1
• Molecular Formula: C₈H₁₄O
• Molecular Weight: 126
• Mol File: 920-08-1.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 162℃
• Flash Point: 42℃
• Appearance: /
• Density: 0.832
• CAS DataBase Reference: 4-Hexenal, 2,2-dimethyl-, (E)-(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Hexenal, 2,2-dimethyl-, (E)-(920-08-1)
• EPA Substance Registry System: 4-Hexenal, 2,2-dimethyl-, (E)-(920-08-1)

Safety Data

• Hazardous Substances Data: 920-08-1(Hazardous Substances Data)

Upstream product

• 4784-77-4 (E)-1-Bromo-2-butene 
• 88592-10-3 N,N-dicyclohexyl-2-methyl-1-propen-1-ylamine 
• 598-32-3 2-hydroxy-3-butene 
• 78-84-2 isobutyraldehyde 
• 4894-61-5 trans-but-2-enyl chloride 

Downstream Products

• 124562-19-2 <<(4S,5R,3'E)-5-(1',1'-dimethyl-3'-pentenyl)-2,2,3-trimethyl-4-oxazolidinyl>carbonyl>-L-2-aminobutyryl-sarcosyl-N-methyl-L-leucyl-L-valyl-N-methyl-L-leucyl-L-alanine benzyl ester 
• 124562-20-5 <(2S,3R,6E)-4,4-dimethyl-3-hydroxy-2-(methylamino)-6-octenoyl>-L-2-aminobutyryl-sarcosyl-N-methyl-L-leucyl-L-valyl-N-methyl-L-leucyl-L-alanine benzyl ester 
• 2370-13-0 2,2-dimethyl-1-hexanol 

Relevant articles and documents

Iodide-catalysed cyclization of unsaturated N-chloroamines: A new way to synthesise 3-chloropiperidines

Tetrabutylammonium iodide is a very efficient catalyst for the cyclization of unsaturated N-chloroamines. The catalysis seems to proceed through N-iodoamine intermediates, which act as a source of iodonium ions. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.

Conformational Analysis and Stereodynamics of Primary Acyclic Alkyl Radicals by EPR Spectroscopy

The EPR spectra of n-alkyl, 2-methylalkyl, 2,2-dimethylalkyl, 2,2,3-trimethylbutyl, and 2,2,3,3-tetramethylbutyl radicals indicate that at 90 K they exist in "rigid" conformations with respect to rotation about the Cβ-Cγ bonds.The preferred conformations about the Cα-Cβ and Cβ-Cγ bonds were deduced by analysis of the β- and γ-H hyperfine splittings (hfs). 2,2,3,3-Tetramethylbutyl radicals, the only radicals with a CH3 group approximately all-trans with respect to the semioccupied p-orbital, were also the only radicals to show resolved δ-hfs.The barriers to internal rotation of the methyl groups in n-propyl, isobutyl, neopentyl, 2,2-bis(trideuteriomethyl)butyl, and 2,2,3,3-tetramethylbutyl radicals were obtained by line shape analysis; the ethyl rotation barrier in 2,2-bis(trideuteriomethyl)butyl and the tert-butyl rotation barrier in 2,2,3,3-tetramethylbutyl radicals were estimated in a similar way.The experimental hfs of trans γ-hydrogens were shown to fit a relationship of the form aHγ = 0.1 +7.9 cos2 Φ, where Φ is the dihedral angle between the SOMO and the plane through Cα, Cβ, and Cγ.Trends in the internal rotation barriers of the alkyl groups were adequately accounted for in terms of steric effects.