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360031

Sigma-Aldrich

(Triisopropylsilyl)acetylene

97%

Sinónimos:

Ethynyltriisopropylsilane

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About This Item

Fórmula lineal:
[(CH3)2CH]3SiC≡CH
Número de CAS:
89343-06-6
Peso molecular:
182.38
Beilstein/REAXYS Number:
3536241
MDL number:
MFCD00075452
UNSPSC Code:
12352100
PubChem Substance ID:
24862139
NACRES:
NA.22

assay

97%

form

liquid

refractive index

n20/D 1.4527 (lit.)

bp

50-52 °C/0.6 mmHg (lit.)

density

0.813 g/mL at 25 °C (lit.)

SMILES string

CC(C)[Si](C#C)(C(C)C)C(C)C

InChI

1S/C11H22Si/c1-8-12(9(2)3,10(4)5)11(6)7/h1,9-11H,2-7H3

InChI key

KZGWPHUWNWRTEP-UHFFFAOYSA-N

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General description

Asymmetric addition of (triisopropylsilyl)acetylene to α,β,γ,δ-unsaturated carbonyl compounds in the presence of a cobalt/Duphos catalyst is reported. A Sonogashira coupling reaction between 1-bromo-3-iodo-5-tertbutylbenzene and (triisopropylsilyl)acetylene is reported.

Application

(Triisopropylsilyl)acetylene may be used as reagent for the rhodium-catalyzed asymmetric alkynylation of various α,β-unsaturated ketones. It may be used as reagent in the enantioselective synthesis of β-alkynylated nitroalkanes.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

132.8 °F - closed cup

flash_point_c

56 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Angewandte Chemie (International ed. in English), 44(26), 4039-4042 (2005-05-21)
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Asymmetric addition of (triisopropylsilyl)acetylene to nitroalkenes took place in the presence of a rhodium/chiral bisphosphine catalyst to give beta-alkynylated nitroalkanes in high yields with high enantioselectivity.
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Journal of the American Chemical Society, 134(46), 18936-18939 (2012-11-08)
Asymmetric addition of (triisopropylsilyl)acetylene to α,β,γ,δ-unsaturated carbonyl compounds took place in the presence of a cobalt/Duphos catalyst to give the 1,6-addition products in high yields with high regio- and enantioselectivity.
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