80885-63-8

Basic information

• Product Name: (Z)-2,4,5,7-tetramethyl-2,4,6-octatriene
• Synonyms: (Z)-2,4,5,7-tetramethyl-2,4,6-octatriene
• CAS NO: 80885-63-8
• Molecular Weight: 164.291
• Mol File: 80885-63-8.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: (Z)-2,4,5,7-tetramethyl-2,4,6-octatriene(CAS DataBase Reference)
• NIST Chemistry Reference: (Z)-2,4,5,7-tetramethyl-2,4,6-octatriene(80885-63-8)
• EPA Substance Registry System: (Z)-2,4,5,7-tetramethyl-2,4,6-octatriene(80885-63-8)

Safety Data

• Hazardous Substances Data: 80885-63-8(Hazardous Substances Data)

Upstream product

• 141-79-7 4-methyl-pent-3-en-2-one 
• 3168-90-9 1-(2-methylcyclopent-1-enyl)ethanone 

Relevant articles and documents

Importance of Structure of α,β-Ethylenic Ketones during Their Reductive Coupling Promoted by the TiCl4-Mg Reagent

In most cases, the reductive coupling of α,β-ethylenic ketones by the TiCl4-Mg reagent leads to 1,3,5-trienes and bisallylic pinacols.Some α,β-enones of s-cis configuration, such as (+)-pulegone, show a particular reactivity: formation of dihydro ketones in the presence of tert-butyl alcohol and reductive alkylation with allylic halides or benzyl bromide.Results are accordance with a polymeric structure for the native low-valent titanium species, and in the case of some s-cis-enones, they can be explained by the intervention of a oxametallacyclopentene.

REDUCTIVE COUPLING OF α,β-ENONES I : REDUCTION OF METHYL-VINYL KETONE AND MESITYL OXIDE.

Reductive coupling of methyl-vinyl ketone with TiCl4-Mg gives pinacol 1 (25percent).According to the reducing agents, mesityl oxide yields 2,4,5,7-tetramethyl-octa-2,4,6-triene 3 (with 4TiCl3-LiAlH4), triene 3 or 2,4,5,7-tetramethyl-octa-2,6-dien-4,5-diol 5 (with TiCl4-Mg), pinacol 5 (with VCl3-Mg), and 2-acetyl-1,3,3,4,4-pentamethyl-cyclopentene 7 (with CrCl3-Mg or FeCl3-Mg or ZrCl4-Mg) as major products.