Pular para o conteúdo
Merck
Todas as fotos(2)

Documentos Principais

Visualizar Toda a Documentação

405329

Sigma-Aldrich

Ytterbium(III) trifluoromethanesulfonate hydrate

Yb 25-28 % (approx.)

Sinônimo(s):

Yb(OTf)3, Trifluoromethanesulfonic acid ytterbium salt, Ytterbium(III) triflate

Faça loginpara ver os preços organizacionais e de contrato
Todas as fotos(2)

About This Item

Fórmula linear:
(CF3SO3)3Yb · xH2O
Número CAS:
252976-51-5
Peso molecular:
620.25 (anhydrous basis)
Número MDL:
MFCD03703499
Código UNSPSC:
12161600
ID de substância PubChem:
24865309
NACRES:
NA.22

composição

Degree of hydration, 1-2
Yb, 25-28% (approx.)

adequação da reação

core: ytterbium
reagent type: catalyst

cadeia de caracteres SMILES

[H]O[H].FC(F)(F)S(=O)(=O)O[Yb](OS(=O)(=O)C(F)(F)F)OS(=O)(=O)C(F)(F)F

InChI

1S/3CHF3O3S.H2O.Yb/c3*2-1(3,4)8(5,6)7;;/h3*(H,5,6,7);1H2;/q;;;;+3/p-3

chave InChI

BUJKNFNMGRYZBV-UHFFFAOYSA-K

Procurando produtos similares? Visita Guia de comparação de produtos

Categorias relacionadas

Descrição geral

Layer-by-layer assembly of 4-aminothiophenol and ytterbium(III)trifluoromethanesulfonate hydrate film has been investigated by atomic force microscopy (AFM). Bis(oxazolinyl)-pyridine-scandium(III) triflate complexes have been reported to catalyze the enantioselective Friedel-Crafts addition of various indoles.

Aplicação

Ytterbium(III) trifluoromethanesulfonate hydrate (Yb(OTf)3) was employed as Lewis acid catalyst for the following studies:
  • Synthesis of the dihydropyrimidine (DHPM) derivative monastrol, by Biginelli cyclocondensation.
  • Cross-aldol reaction between ketone and aldehyde.
  • Synthesis of β-keto enol ethers.
  • Synthesis of deoxypenostatin A in a novel, stereoselective intramolecular Diels-Alder reaction.

Pictogramas

Exclamation mark
GHS07

Palavra indicadora

Warning

Frases de perigo

H315,H319,H335

Classificações de perigo

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

8A - Combustible corrosive hazardous materials

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number
BGBC5954V
BGBC3062V
BGBB9396
BCBB0360V
BCBB0360

Não está vendo a versão correta?

Se precisar de uma versão específica, você pode procurar um certificado específico pelo número do lote ou da remessa.

Pesquise por COA

Já possui este produto?

Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.

Visite a Biblioteca de Documentos

Os clientes também visualizaram

Slide 1 of 2

1 of 2

Sodium trifluoromethanesulfonate 98%

Sigma-Aldrich

367907

Sodium trifluoromethanesulfonate

Copper(II) trifluoromethanesulfonate 98%

Sigma-Aldrich

283673

Copper(II) trifluoromethanesulfonate

Ytterbium Trifluoromethanesulfonate Mediated Cross-Aldol Reaction between Ketones and Aldehydes.
Fukuzawa S-I, et al.
Bulletin of the Chemical Society of Japan, 67(8), 2227-2232 (1994)
David A Evans et al.
Journal of the American Chemical Society, 129(32), 10029-10041 (2007-07-31)
The enantioselective Friedel-Crafts addition of a variety of indoles catalyzed by bis(oxazolinyl)pyridine-scandium(III) triflate complexes (Sc(III)-pybox) was accomplished utilizing a series of beta-substituted alpha,beta-unsaturated phosphonates and alpha,beta-unsaturated 2-acyl imidazoles. The acyl phosphonate products were efficiently transformed into esters and amides, whereas
Ytterbium triflate catalyzed synthesis of β-keto enol ethers.
Curini M, et al.
Tetrahedron Letters, 47(27), 4697-4700 (2006)
Doris Dallinger et al.
Nature protocols, 2(2), 317-321 (2007-04-05)
We present here a protocol for the synthesis of the dihydropyrimidine (DHPM) derivative monastrol, which is known to be a specific mitotic kinesin Eg5 inhibitor. By applying controlled microwave heating under sealed-vessel conditions, the synthesis via the one-pot three-component Biginelli
Snider, B.B. Liu, T.
The Journal of Organic Chemistry, 64, 1088-1088 (1999)
Exibir todos os documentos relacionados

Artigos

Friedel–Crafts Acylation

The Friedel–Crafts acylation is the reaction of an arene with acyl chlorides or anhydrides using a strong Lewis acid catalyst. This reaction proceeds via electrophilic aromatic substitution to form monoacylated products.

Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.

Entre em contato com a assistência técnica