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Merck

195596

Sigma-Aldrich

sec-Butyllithium solution

sec-Butyllithium solution
1 de 3 reseñadores recibieron un producto de muestra o participaron en una promoción

1.4 M in cyclohexane

Sinónimos:

Lithium-2-butanide, s-BuLi

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About This Item

Fórmula lineal:
CH3CH2CH(CH3)Li
Número de CAS:
Peso molecular:
64.06
Beilstein:
3587206
Número MDL:
Código UNSPSC:
12352103
ID de la sustancia en PubChem:
NACRES:
NA.22
En este momento no podemos mostrarle ni los precios ni la disponibilidad

Formulario

liquid

Nivel de calidad

concentración

1.4 M in cyclohexane

densidad

0.769 g/mL at 25 °C

temp. de almacenamiento

2-8°C

cadena SMILES

[Li]C(C)CC

InChI

1S/C4H9.Li/c1-3-4-2;/h3H,4H2,1-2H3;

Clave InChI

VATDYQWILMGLEW-UHFFFAOYSA-N

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Aplicación

sec-Butyllithium solution (1.4M in cyclohexane) has been used in the multi-step synthesis of 5-methyl-5,6-dihydrothymidine (5-MDHT) from thymidine.[1] It has also been used in the copper-catalyzed asymmetric allylic alkylation (AAA) of allyl bromides, chlorides, and ethers in the presence of a chiral ligand.[2]

Envase

The 25 mL Sure/Seal bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Información legal

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

Palabra de señalización

Danger

Clasificaciones de peligro

Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Pyr. Liq. 1 - Skin Corr. 1B - STOT SE 3 - Water-react 1

Órganos de actuación

Central nervous system

Código de clase de almacenamiento

4.2 - Pyrophoric and self-heating hazardous materials

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

1.4 °F - closed cup

Punto de inflamabilidad (°C)

-17 °C - closed cup

Equipo de protección personal

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


Listados normativos

Los listados normativos se proporcionan para los productos químicos principalmente. Para los productos no químicos sólo se puede proporcionar información limitada. Si no hay ninguna entrada, significa que ninguno de los componentes está en la lista. Es obligación del usuario garantizar el uso seguro y legal del producto.

EU REACH Annex XVII (Restriction List)

CAS No.

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Certificados de análisis (COA)

Lot/Batch Number

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Visite la Librería de documentos

Dimitrios Moschovas et al.
Nanomaterials (Basel, Switzerland), 10(8) (2020-08-06)
The synthesis, molecular and morphological characterization of a 3-miktoarm star terpolymer of polystyrene (PS, M¯n = 61.0 kg/mol), polybutadiene (PB, M¯n = 38.2 kg/mol) and polyisoprene (PI, M¯n = 29.2 kg/mol), corresponding to volume fractions (φ) of 0.46, 0.31 and
Jason V Chari et al.
The Journal of organic chemistry, 84(6), 3652-3655 (2019-03-07)
Silyl triflate precursors to cyclic alkynes and allenes serve as valuable synthetic building blocks. We report a concise and scalable synthetic approach to prepare the silyl triflate precursors to cyclohexyne and 1,2-cyclohexadiene. The strategy involves a retro-Brook rearrangement of an
Lukasz Otulakowski et al.
Polymers, 12(1) (2020-01-17)
In this work, the self-assembly of a series of amphiphilic polystyrene-b-polyglycidol (PS-b-PGL) diblock copolymers in dioxane and dioxane/water mixtures is presented. The PS-b-PGL have an average degree of polymerization (DP) of PS block equal to 29 units and varied degrees
Leixing Chen et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 24(68), 18012-18019 (2018-11-15)
Although living polymerization methods are widely applicable to organic monomers, their application to inorganic monomers is rare. For the first time, we show that the living poly(methylenephosphine) (PMPn- ) anion can function as a macroinitiator for olefins. Specifically, the phosphaalkene
Qinghui Wang et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 118, 32-39 (2018-03-20)
Tumor pH detection and pH value change monitoring have been of great interest in the field of nanomedicine. In this study, a pH-sensitive near-infrared fluorescence probe SiRB (Si-rhodamine and Boronic acid group) was synthesized by introducing a boronic acid group

Preguntas

Revisiones

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1–2 de 3 Reseñas  

Filtros activos

  1. South West, UK
    • Reseña 1
    • Votos 6
    2 de 5 estrellas.

    Titrate your s-BuLi before use

    s-BuLi when titrated came to about 0.73 M not the 1.4 M stated on the bottle

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    ¿Le ha resultado útil?

    1. Respuesta de Sigma-Aldrich Corporation:

      Thank you for taking the time to leave a review! sec-Butyllithium is very sensitive to air, moisture and temperature and should be handled under inert atmosphere. During storage a white precipitate of lithium hydride may form as it slowly decomposes, which is part of the characteristics of this chemical resulting in a limited shelf life. We would love to learn more about your experience and see if there is anything more we can do to help with this issue. When you have a moment, please contact us by visiting https://www.sigmaaldrich.com/support/customer-support and submit a Product Technical Inquiry. We look forward to hearing from you soon!

  2. South West
    • Reseña 1
    • Votos 6
    1 de 5 estrellas.

    Highly turbid, with sediment that doesn't settle

    Highly turbid, with sediment that doesn't settle, giving inconsistent results. Titre is less than half than marketed.

    Traducir con Google

    ¿Le ha resultado útil?

    1. Respuesta de Sigma-Aldrich Corporation:

      Thank you for taking the time to leave a review! We are sorry to hear that your experience did not meet expectations. We would like to learn more about your experience to see if there is anything we can do to help troubleshoot this issue. When you have a moment, please contact us by visiting https://www.sigmaaldrich.com/support/customer-support and submit a Report Product Issue ticket. We look forward to hearing from you soon!

  3. 1 valoración sin reseña

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