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249505

Sigma-Aldrich

2,6-Di-tert-butyl-4-methylpyridine

98%

Sinonimo/i:

2,6-Bis(1,1-dimethylethyl)-4-methylpyridine, 2,6-Bis(tert-butyl)-4-methylpyridine, 2,6-Ditert-butyl-4-methylpyridine, 4-Methyl-2,6-di-tert-butylpyridine

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About This Item

Formula empirica (notazione di Hill):
C14H23N
Numero CAS:
38222-83-2
Peso molecolare:
205.34
Beilstein:
130503
Numero CE:
253-834-4
Numero MDL:
MFCD00006305
Codice UNSPSC:
12352100
ID PubChem:
24855001
NACRES:
NA.22

Saggio

98%

Forma fisica

solid

Indice di rifrazione

n20/D 1.4763 (lit.)

P. eboll.

233 °C (lit.)

Punto di fusione

33-36 °C (lit.)

Solubilità

ethanol: soluble 5%, clear to slightly hazy, colorless to dark yellow

Temperatura di conservazione

2-8°C

Stringa SMILE

Cc1cc(nc(c1)C(C)(C)C)C(C)(C)C

InChI

1S/C14H23N/c1-10-8-11(13(2,3)4)15-12(9-10)14(5,6)7/h8-9H,1-7H3
HVHZEKKZMFRULH-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

2,6-Di-tert-butyl-4-methylpyridine is a sterically hindered, non-nucleophilic base which distinguishes between BrÖnsted (protonic) and Lewis acids. It also enables the direct high-yield conversion of aldehydes and ketones to vinyl triflates. It inhibits desilylation and hydration of the products during GaCl3-catalyzed ortho-ethynylation of phenol.

Applicazioni

2,6-Di-tert-butyl-4-methylpyridine has been used:
  • in the synthesis of 1,2-dihydro-2-silanaphthalene derivatives
  • as base in PtCl4-catalyzed cyclization reactions of homopropargyl azide derivatives
  • diastereoselective synthesis of β-thiomannopyranosides

Pittogrammi

Exclamation mark
GHS07

Avvertenze

Warning

Indicazioni di pericolo

H302,H315,H319,H335

Classi di pericolo

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

183.2 °F - closed cup

Punto d’infiammabilità (°C)

84 °C - closed cup

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves

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Certificati d'analisi (COA)

Lot/Batch Number
BCCG6911
BCCG4356
BCCG2181
BCBN5979V
BCBN3608V

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Chemical communications (Cambridge, England), 50(50), 6649-6652 (2014-05-16)
Treatment of dialkylbenzylsilane (1) with trityl tetrakis(pentafluorophenyl)borate (TPFPB) in the presence of terminal or internal alkynes (3) and 2,6-di-tert-butyl-4-methylpyridine gave the corresponding 1,2-dihydro-2-silanaphthalene derivatives (4) in 34-82% yields.
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Regioselectivity of Ln(OTf)3-catalysed alcoholysis of 2,3- and 3,4-epoxy alcohols was closely investigated to expand the scope of the transformations. The synthetic use was demonstrated by application to the construction of 4-propoxy-5-hydroxy-2,3-pentanedione (C4-propoxy-HPD), which is a potent synthetic mediator in AI-2
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The Journal of organic chemistry, 65(3), 801-805 (2000-05-18)
A highly diastereoselective synthesis of beta-thiomannopyranosides is described in which S-phenyl 2,3-di-O-benzyl-4, 6-O-benzylidene-1-deoxy-1-thia-alpha-D-mannopyranoside S-oxide is treated with triflic anhydride and 2, 6-di-tert-butyl-4-methylpyridine in CH(2)Cl(2) at -78 degrees C leading to the formation of an intermediate alpha-mannosyl triflate. Addition of primary
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