71521-86-3

Basic information

• Product Name: 1-butyl-2-pentylbenzene
• Synonyms: 1-butyl-2-pentylbenzene
• CAS NO: 71521-86-3
• Molecular Weight: 204.356
• Mol File: 71521-86-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1-butyl-2-pentylbenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-butyl-2-pentylbenzene(71521-86-3)
• EPA Substance Registry System: 1-butyl-2-pentylbenzene(71521-86-3)

Safety Data

• Hazardous Substances Data: 71521-86-3(Hazardous Substances Data)

Upstream product

• 109-72-8 n-butyllithium 
• 123-72-8 butyraldehyde 
• 141819-13-8 n-butyl o-iodobenzyl telluride 
• 3525-31-3 n-pentyl lithium 
• 101082-61-5 1-butyl-2-pentyl-cyclohexene 
• 101452-84-0 2-Butyl-1-pentyl-cyclohexanol 
• 5159-41-1 2-iodobenzyl alcohol 
• 183789-20-0 2-iodobenzyl methanesulfonate 
• 6263-62-3 benzyl(ethyl)sulfane 
• 766-92-7 [(methylthio)methyl]-benzene 
• 124-38-9 carbon dioxide 
• 101452-35-1 1-butyl-2-pentyl-cyclohexane 

Relevant articles and documents

A novel 1,2-migration of arylzincates bearing a leaving group at benzylic position: Application to a three-component coupling of p-iodobenzyl derivatives, trialkylzincates, and electrophiles leading to functionalized p- substituted benzenes

A three-component coupling of p-iodobenzyl derivatives, trialkylzincates, and electrophiles is described. Lithium trialkylzincates (R3ZnLi) react with p-iodobenzyl methanesulfonate to give benzylzinc reagents p-RC6H4CH2Zn(L). The reaction proceeds through a mechanism involving initial iodine/zinc exchange and the 1,2-migration of the resulting arylzincates. The benzylzinc reagents, thus prepared, are subsequently used in coupling reaction with electrophiles such as aldehydes, ketones, acyl chlorides, tosyl cyanide, and chlorosilanes to give a variety of functionalized p-substituted benzenes. Reactions under Barbier conditions in which the corresponding benzylzinc reagents are generated in the presence of electrophiles work well for Me3ZnLi and for magnesium zincates R3ZnMgBr derived from Grignard reagents. Generation of secondary benzylzinc reagents starting from diethyl 1-(p-iodophenyl)ethyl phosphate and their reaction with electrophiles are also achieved under Barbier conditions. Ketones, allyl bromides, and chlorosilanes are successfully used as electrophiles under these conditions.

METALATION REACTIONS. VII. METALATION OF BENZYLALKYL AND β-PHENETHYLALKYL SULFIDES

The products from the reaction between n-butyllithium and benzylalkyl and β-phenethylalkyl sulfides followed by carbonation, have been investigated by GLC/MS analysis.With benzylalkyl sulfides metalation occurs at the benzylic position, and the corresponding carboxylic acid can be isolated, but side products from Wittig like rearrangement, cleavage of the thioether bond, and aliphatic and aromatic substitution are also obtained.No benzylic metalation or Wittig-like rearrangement products are obtained from β-phenethyl sulfides: instead cleavage of the thioether bond and aliphatic and aromatic substitution occur.