5857-69-2

Basic information

• Product Name: 2,2,3,4,4-pentamethylpentan-3-ol
• Synonyms: 3-Pentanol, 2,2,3,4,4-pentamethyl-
• CAS NO: 5857-69-2
• Molecular Formula: C₁₀H₂₂O
• Molecular Weight: 158.2811
• Mol File: 5857-69-2.mol
• Article Data: 5

Chemical Properties

• Melting Point: 42-43 °C
• Boiling Point: 165.7°C at 760 mmHg
• Flash Point: 56.9°C
• Density: 0.827g/cm³
• Vapor Pressure: 0.62mmHg at 25°C
• Refractive Index: 1.434
• PKA: 15.38±0.29(Predicted)
• CAS DataBase Reference: 2,2,3,4,4-pentamethylpentan-3-ol(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2,3,4,4-pentamethylpentan-3-ol(5857-69-2)
• EPA Substance Registry System: 2,2,3,4,4-pentamethylpentan-3-ol(5857-69-2)

Safety Data

• Hazardous Substances Data: 5857-69-2(Hazardous Substances Data)

Upstream product

• 917-64-6 methyl magnesium iodide 
• 60-29-7 diethyl ether 
• 815-24-7 Di-t-butyl ketone 
• 75-16-1 methylmagnesium bromide 
• 917-54-4 methyllithium 
• 2999-74-8 dimethylmagnesium 
• 79-20-9 acetic acid methyl ester 
• 594-19-4 tert.-butyl lithium 
• 75-97-8 3,3-dimethyl-butan-2-one 
• 3282-30-2 pivaloyl chloride 
• 598-98-1 Methyl pivalate 
• 1391728-03-2 tBuC(=O)-C(OLi)tBu₂ 
• 676-58-4 methylmagnesium chloride 
• 36146-59-5 4-tert-butyl-4-hydroxy-2,2,5,5-tetramethylhexan-3-one 

Downstream Products

• 40544-10-3 4-Nitro-benzoic acid 1-tert-butyl-1,2,2-trimethyl-propyl ester 
• 81675-65-2 p-Tolyl-carbamic acid 1-tert-butyl-1,2,2-trimethyl-propyl ester 
• 563-79-1 2,3-Dimethyl-2-butene 
• 563-78-0 2,3-Dimethyl-1-butene 
• 115-11-7 isobutene 
• 7499-68-5 Di-tert.-butyl-essigsaeure-amid 
• 41785-81-3 2-tert-Butyl-3,3-dimethylbutanoic acid 

Relevant articles and documents

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The retro Grignard addition reaction revisited: The reversible addition of benzyl reagents to ketones

The Grignard addition reaction is known to be a reversible process with allylic reagents, but so far the reversibility has not been demonstrated with other alkylmagnesium halides. By using crossover experiments it has been established that the benzyl addition reaction is also a reversible transformation. The retro benzyl reaction was shown by the addition of benzylmagnesium chloride to di-tert-butyl ketone followed by exchange of both the benzyl and the ketone moiety with another substrate. Similar experiments were performed with phenylmagnesium bromide and tert-butylmagnesium chloride, but in these two cases the Grignard addition reaction did not show any sign of a reverse transformation.

Synthesis of Some Carboxylic Acid Analogs Cleaved between the C-2 and C-3 Bond of Tetramethylcyclopropanecarboxylic Acid, and Insecticidal Activities of Their Esters

Carboxylic acids with a cleaved type of cyclopropane ring between the C-2 and C-3 bond in tetramethylcyclopropanecarboxylic acid, the acid part of fenpropathrin, were prepared.Several of their esters with pyrethroidal alcohols exhibited good insecticidal activity, but their activity was a little weaker than that of fenpropathrin.