4,4'-Di-tert-butylbiphenyl, 99%

Catalog No.	Quantity
AAB2147006	5 g
AAB2147014	25 g
AAB2147022	100 g

Catalog No. AAB2147006 Supplier Thermo Scientific Chemicals Supplier No. B2147006

Description

CAS: 1625-91-8 | C20H26 | 266.428 g/mol

It is used in the generation of 1,2-di(lithiomethyl)benzene. It is found to accept electrons from Li metal to give a radical anion which is highly effective in the conversion of alkyl halides to alkyllithiums. 4,4?-Di-tert-butylbiphenyl is used in production of homoallylic amine derivatives. It is also used in the preparation of lithium di-tert-butylbiphenylide, a radical anion, superior to sodium or lithium naphthalenides for metalation reactions. Along with lithium, 4,4?-Di-tert-butylbiphenyl catalyzes; reaction of chloromethyl ethyl ether and different carbonyl compounds to yield corresponding hydroxyethers and reductive opening of N-phenylazetidine.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
It is used in the generation of 1,2-di(lithiomethyl)benzene. It is found to accept electrons from Li metal to give a radical anion which is highly effective in the conversion of alkyl halides to alkyllithiums. 4,4′-Di-tert-butylbiphenyl is used in production of homoallylic amine derivatives. It is also used in the preparation of lithium di-tert-butylbiphenylide, a radical anion, superior to sodium or lithium naphthalenides for metalation reactions. Along with lithium, 4,4′-Di-tert-butylbiphenyl catalyzes; reaction of chloromethyl ethyl ether and different carbonyl compounds to yield corresponding hydroxyethers and reductive opening of N-phenylazetidine.

Solubility
Solubility in toluene; almost transparency. Soluble in dioxane: 0.1 g/mL, (clear).

Notes
Store away from oxidizing agents. Keep the container tightly closed and place it in a cool, dry and well ventilated condition.

Specifications

Chemical Identifiers

• CAS: 1625-91-8
• Molecular Formula: C20H26
• Molecular Weight (g/mol): 266.428
• MDL Number: MFCD00008834
• InChI Key: CDKCEZNPAYWORX-UHFFFAOYSA-N
• Synonym: 4,4'-di-tert-butylbiphenyl, 4,4'-di-tert-butyl-1,1'-biphenyl, 4,4'-di-t-butylbiphenyl, 1-tert-butyl-4-4-tert-butylphenyl benzene, 1,1'-biphenyl, 4,4'-bis 1,1-dimethylethyl, 1-tert-butyl-4-4-tert-butyl phenyl benzene, di-t-butylbiphenyl, pubchem9048, acmc-209st2, 4,4'-di-tertbutylbiphenyl
• PubChem CID: 74195
• IUPAC Name: 1-tert-butyl-4-(4-tert-butylphenyl)benzene
• SMILES: CC(C)(C)C1=CC=C(C=C1)C2=CC=C(C=C2)C(C)(C)C

• Melting Point: 126°C to 129°C
• Boiling Point: 190°C to 192°C (13 mmHg)
• Quantity: 5 g
• Beilstein: 2095855
• Formula Weight: 266.43
• Percent Purity: 99%
• Chemical Name or Material: 4,4'-Di-tert-butylbiphenyl

Safety and Handling

EINECSNumber	216-615-4
TSCA	No
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only