| Identification | More | [Name]
4,4'-DI-TERT-BUTYLBIPHENYL | [CAS]
1625-91-8 | [Synonyms]
4,4'-DI-T-BUTYLBIPHENYL
4,4'-DI-TERT-BUTYLBIPHENYL
TIMTEC-BB SBB007812
1,1'-Biphenyl, 4,4'-bis(1,1-dimethylethyl)-
4,4'-Ditert-butyl-1,1'-biphenyl
4,4'-Di-tert-butylbiphenyl, 99+%
4,4'-Di-tert-butylbiphenyl Zone Refined (number of passes:30)
4,4'-Di-t-butylbiphenyl | [EINECS(EC#)]
216-615-4 | [Molecular Formula]
C20H26 | [MDL Number]
MFCD00008834 | [Molecular Weight]
266.42 | [MOL File]
1625-91-8.mol |
| Chemical Properties | Back Directory | [Appearance]
Powder | [Melting point ]
126-130 °C(lit.)
| [Boiling point ]
190-192 °C13 mm Hg(lit.)
| [density ]
0.9463 (estimate) | [refractive index ]
1.5928 (estimate) | [Fp ]
190-192°C/13mm | [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
dioxane: 0.1 g/mL, clear
| [form ]
Crystalline Powder | [color ]
Light yellow to yellow-orange | [BRN ]
2095855 | [CAS DataBase Reference]
1625-91-8(CAS DataBase Reference) | [NIST Chemistry Reference]
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| Safety Data | Back Directory | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes . | [WGK Germany ]
3
| [HS Code ]
29029090 |
| Hazard Information | Back Directory | [Chemical Properties]
Powder | [Uses]
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. | [Synthesis Reference(s)]
Tetrahedron Letters, 26, p. 1655, 1985 DOI: 10.1016/S0040-4039(00)98576-9 | [General Description]
4,4′-Di-tert-butylbiphenyl along with lithium catalyzes:
- reaction of chloromethyl ethyl ether and different carbonyl compounds to yield corresponding hydroxyethers
- reductive opening of N-phenylazetidine
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