32773-42-5

Basic information

• Product Name: Methylbutyl selenide
• Synonyms: 1-(Methylseleno)butane;Methylbutyl selenide
• CAS NO: 32773-42-5
• Molecular Formula: C₅H₁₂Se
• Molecular Weight: 151.11
• Mol File: 32773-42-5.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Methylbutyl selenide(CAS DataBase Reference)
• NIST Chemistry Reference: Methylbutyl selenide(32773-42-5)
• EPA Substance Registry System: Methylbutyl selenide(32773-42-5)

Safety Data

• Hazardous Substances Data: 32773-42-5(Hazardous Substances Data)

Upstream product

• 71518-69-9 1,1-bis(methylseleno)-4-tert-butyl cyclohexane 
• 72335-32-1 7,7-bis-methylselanyl-tridecane 
• 100-52-7 benzaldehyde 
• 123445-64-7 2-methylseleno-2-phenylselenopropan 
• 66-25-1 hexanal 
• 20333-40-8 dibutyl diselenide 
• 41398-67-8 2-phenylethynylanisole 
• 1238892-12-0 4-fluoro-1-methoxy-2-(phenylethynyl)benzene 
• 1191950-68-1 1-methoxy-4-methyl-2-(2-phenylethynyl)benzene 
• 105824-46-2 4-methoxyphenyl-bis(methylseleno)methane 
• 94417-53-5 (1-phenylethane-1,1-diyl)bis(methylselane) 
• 66030-44-2 2,2-bis(methylseleno)octane 
• 56051-08-2 bis(methylseleno) cyclohexane 
• 56051-06-0 2,2-propane 

Downstream Products

• 55021-76-6 Methyl-propyl-selenid 
• 32773-41-4 butyl propyl selenide 

Relevant articles and documents

FeCl3-Diorganyl dichalcogenides promoted cyclization of 2-alkynylanisoles to 3-chalcogen benzo[ b ]furans

A general synthesis of 3-chalcogen benzo[b]furans from the readily available 2-alkynylanisoles, via FeCl3/diorganyl dichalcogenides intramolecular cyclization, has been developed. Aryl and alkyl groups directly bonded to the chalcogen atom were used as cycling agents. The results revealed that the reaction significantly depends on the electronic effects of substituents in the aromatic ring bonded to the selenium atom of the diselenide species. We observed that the pathway of reaction was not sensitive to the nature of substituents in the aromatic ring of anisole since both the electron-donating and the electron-withdrawing groups delivered the products in similar yields. In addition, the obtained heterocycles were readily transformed to more complex products by using a chalcogen/lithium exchange reaction with n-BuLi followed by trapping of the lithium intermediate with aldehydes, furnishing the desired secondary alcohols in good yields.

COMPARISON BETWEEN ALKYLSELENO, ARYLSELENO AND ARYLTHIO SUBSTITUENTS STABILIZING ALKYLLITHIUM COMPOUNDS

This paper discloses the chemoselective cleavage of selenoacetals.Informations concerning the intimate mechanism of such process are produced as well as unambigous experimental results concrening the relative stabilization of a carbanionic center by phenylthio, phenylseleno and methylseleno moieties.

SYNTHESIS OF α-SELENOALKYLLITHIUM COMPOUNDS

α-Phenylselenoalkyllithiums and α-methylselenoalkyllithiums have been prepared from the corresponding selenoacetals and alkyllithiums.Several features of this reaction are disclosed.For example, the reaction is more readily achieved on phenylselenoacetals than on methylseleno analogues.Those derived from hindered carbonyl compounds are less readily cleaved. s-BuLi/THF proved superior to n-BuLi in THF, itself better than n-BuLi in ether.

Stereoselective Synthesis and Reactions of 1-Seleno-4-tert-Butyl Cyclohexyllithiums

The axial C-Se bond of seleno- and mixed selenoacetals derived from 4-tert-butyl cyclohexanones exhibit a high tendency to be cleaved by n-butyllithium.The resulting 1-seleno-4-tert-butyl cyclohexyllithiums are selectively protonated or selenylated via ax