Saltar al contenido
Merck
Todas las fotos(2)

Key Documents

View All Documentation

803855

Sigma-Aldrich

Schreiner′s Catalyst

greener alternative

Sinónimos:

1,3-Bis[3,5-bis(trifluoromethyl)phenyl]urea, N,N′-bis[3,5-bis(trifluoromethyl)phenyl]-Urea

Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización
Todas las fotos(2)

About This Item

Fórmula empírica (notación de Hill):
C17H8F12N2O
Número de CAS:
3824-74-6
Peso molecular:
484.24
MDL number:
MFCD00018048
UNSPSC Code:
12161600
PubChem Substance ID:
329768829
NACRES:
NA.22

assay

97%

Quality Level

100

form

powder

reaction suitability

reagent type: catalyst

greener alternative product characteristics

Catalysis
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

greener alternative category

Aligned,

storage temp.

2-8°C

SMILES string

O=C(NC1=CC(C(F)(F)F)=CC(C(F)(F)F)=C1)NC2=CC(C(F)(F)F)=CC(C(F)(F)F)=C2

InChI

1S/C17H8F12N2O/c18-14(19,20)7-1-8(15(21,22)23)4-11(3-7)30-13(32)31-12-5-9(16(24,25)26)2-10(6-12)17(27,28)29/h1-6H,(H2,30,31,32)

InChI key

YGCOMBKZFUMALE-UHFFFAOYSA-N

Categorías relacionadas

General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for catalytic efficiency. Click here for more information.

Application

Schreiner′s catalyst is commonly used as a hydrogen-bond donor in the activation of carbonyls, nitroolefins, imines etc.

Other Notes

Acceleration of the DABCO-promoted Baylis–Hillman reaction using a recoverable H-bonding organocatalyst

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Elija entre una de las versiones más recientes:

Certificados de análisis (COA)

Lot/Batch Number
MKCR4465
MKCM5141
MKCK6548
MKCG1567

¿No ve la versión correcta?

Si necesita una versión concreta, puede buscar un certificado específico por el número de lote.

Busque por un COA

¿Ya tiene este producto?

Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

Bonding Organocatalysed Friedel-Crafts Alkylation of Aromatic and Heteroaromatic Systems with Nitroolefins
Dessole G,et al.
Synlett, 13, 2374-2378 (2004)
Sonia S So et al.
Organic letters, 13(4), 716-719 (2011-01-14)
Boronate ureas are introduced as a new class of noncovalent catalysts for conjugate addition reactions with enhanced activity. Through intramolecular coordination of the urea functionality to a strategically placed Lewis acid, rate enhancements up to 10 times that of more
Sarah A Kavanagh et al.
Organic & biomolecular chemistry, 6(8), 1339-1343 (2008-04-04)
N,N'-Diarylureas have been shown to efficiently catalyse sulfonium ylide-mediated aldehyde epoxidation reactions for the first time. These processes are of broad scope and can be coupled with a subsequent Cu(II) ion-catalysed Meinwald rearrangement to give an efficient and convenient protocol

Contenido relacionado

Anita Mattson – Professor Product Portal

Boronate ureas benefit from internal Lewis acid coordination of the urea cabonyl oxygen and the strategically placed boron. As a result of this structural feature, boronate ureas can be rendered more acidic than conventional urea hydrogen bond donor catalysts.

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico