57123-34-9

Basic information

• Product Name: 1,1'-(3,3-Dimethylbutylidene)bisbenzene
• Synonyms: 1,1'-(3,3-Dimethylbutylidene)bisbenzene
• CAS NO: 57123-34-9
• Molecular Formula: C₁₈H₂₂
• Molecular Weight: 238.37
• Mol File: 57123-34-9.mol
• Article Data: 6

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1,1'-(3,3-Dimethylbutylidene)bisbenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1'-(3,3-Dimethylbutylidene)bisbenzene(57123-34-9)
• EPA Substance Registry System: 1,1'-(3,3-Dimethylbutylidene)bisbenzene(57123-34-9)

Safety Data

• Hazardous Substances Data: 57123-34-9(Hazardous Substances Data)

Usage

Structure

A derivative of benzene with two benzene rings connected by a central butylidene group

Functionality

Crosslinking agent in polymer production

Application

Fragrance ingredient in perfumes

Usage

Building block for the synthesis of various organic compounds

Hazard Level

Low hazard chemical

Health Risks

No significant health risks associated with its use

Upstream product

• 6130-96-7 1,1-dichloro-3,3-dimethylbutane 
• 530-48-3 1,1-Diphenylethylene 
• 38442-51-2 tert-butylmercury chloride 
• 630-17-1 2,2-dimethylpropyl bromide 
• 881-42-5 diphenylmethyllithium 
• 62678-51-7 meso-2,2,5,5-Tetramethyl-3,4-diphenylhexane 
• 507-20-0 tertiary butyl chloride 
• 1178546-41-2 (1-tert-butylcyclohexa-2,5-dien-1-yl)benzene 
• 75-65-0 tert-butyl alcohol 

Downstream Products

• 104142-13-4 2,2,5,5-Tetramethyl-4,4-diphenylhexan 

Relevant articles and documents

Radical dehydroxylative alkylation of tertiary alcohols by Ti catalysis

Deoxygenative radical C?C bond-forming reactions of alcohols are a long-standing challenge in synthetic chemistry, and the current methods rely on multistep procedures. Herein, we report a direct dehydroxylative radical alkylation reaction of tertiary alcohols. This new protocol shows the feasibility of generating tertiary carbon radicals from alcohols and offers an approach for the facile and precise construction of all-carbon quaternary centers. The reaction proceeds with a broad substrate scope of alcohols and activated alkenes. It can tolerate a wide range of electrophilic coupling partners, including allylic carboxylates, aryl and vinyl electrophiles, and primary alkyl chlorides/bromides, making the method complementary to the cross-coupling procedures. The method is highly selective for the alkylation of tertiary alcohols, leaving secondary/primary alcohols (benzyl alcohols included) and phenols intact. The synthetic utility of the method is highlighted by its 10-g-scale reaction and the late-stage modification of complex molecules. A combination of experiments and density functional theory calculations establishes a plausible mechanism implicating a tertiary carbon radical generated via Ti-catalyzed homolysis of the C?OH bond.

Titanocene-Catalyzed Regioselective Carbomagnesation of Alkenes and Dienes

A new method for regioselective carbomagnesation of alkenes and dienes has been developed by the use of a titanocene catalyst. This reaction proceeds efficiently at 0 °C in THF in the presence of Cp2TiCl 2 by the combined use of organic halides (R-X; R = alkyl, aryl and vinyl) and n-BuMgCl to afford benzyl, α-silylalkyl, or allyl Grignard reagents, which were trapped with various electrophiles. The present reaction involves (i) addition of carbon radicals toward alkenes or dienes in the carbon-carbon bond-forming step and (ii) transmetalation on Ti of benzyl-α-silylalkyl-, or allyltitanocene with n-BuMgCl in the carbon-magnesium bond-forming step. The scope and limitations of this reaction have also been examined.

Free Radical Reactions of 1,1-Diarylethylenes with t-Butylmercury Chloride

The photostimulated reactions of Bu(t)HgCl with 1,1-diarylethylenes yield different products for the aryl groups C6H5, p-O2NC6H4, or p-MeOC6H4 reflecting the donor or acceptor properties of Bu(t)CB2C(*)(Ar)2.