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728-87-0 - 4,4'-Dimethoxybenzhydrol, 98+% - Bis(4-methoxyphenyl) carbinol - 4,4'-Dimethoxydiphenylmethanol - A14604 - Alfa Aesar

A14604 4,4'-Dimethoxybenzhydrol, 98+%

Codice CAS
728-87-0
Sinonimi
Bis(4-methoxyphenyl) carbinol
4,4'-Dimethoxydiphenylmethanol

Dimensioni Prezzo ($) Quantità Disponibilità
10g 62,00
50g 222,00
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4,4'-Dimethoxybenzhydrol, 98+%

MDL
MFCD00008410
EINECS
211-975-9

Proprietà chimiche

Formula
C15H16O3
Peso formula
244.29
Punto di fusione
69-71°
Solubilità
Soluble in water (0.44 g/L @ 25°C), methanol (0.1 g/mL).

Applicazioni

4,4?-Dimethoxybenzhydrol was used to study the kinetics and mechanism of oxidation of substituted benzhydrols to corresponding benzophenones in the presence of Hg(OAc)2 by N-bromosuccinimide. It is useful in the protection of glutamine and asparagine residues in peptide synthesis, reagent for the N-protection of amides.

Note

Store in cool, dry conditions in a well sealed container. Store away from oxidizing agents.

Letteratura

B. L. Hiran; R. K. Malkani; N. Rathore. Kinetics and mechanism of oxidation of some substituted benzhydrols by N-bromosuccinimide. Kinetics and Catalysis. 1992, 46 (3), 334-339.

C Henneuse; T Boxus; L Tesolin; G Pantano. One-Step Hydroxy Substitution of 4, 4'-Dimethoxybenzhydrol with Amides, Lactams, Carbamates, Ureas and Anilines. Synthesis. 1996, 1996 (4), 495-501.

Reagent for the N-protection of amides, useful in the protection of glutamine and asparagine residues in peptide synthesis. Substitution of the OH group with amide and a variety of other N functionalities occurs readily in AcOH with H2SO4 catalysis: Chem. Ber., 103, 2041 (1970); Synthesis, 495 (1996). Deprotection occurs in TFA.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni precauzionali: P260-P201-P280-P304+P340-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
748532
Codice tariffe armonizzato
2909.49
TSCA
No

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