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774766

Sigma-Aldrich

Lithium diisopropylamide solution

1.0 M in THF/hexanes

Synonym(s):
LDA
Linear Formula:
[(CH3)2CH]2NLi
CAS Number:
Molecular Weight:
107.12
Beilstein:
3655042
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

concentration

1.0 M in THF/hexanes

density

0.719 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

[Li]N(C(C)C)C(C)C

InChI

1S/C6H14N.Li/c1-5(2)7-6(3)4;/h5-6H,1-4H3;/q-1;+1

InChI key

ZCSHNCUQKCANBX-UHFFFAOYSA-N

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General description

This material is in a solution of THF/Hexanes (ca. 1:7 ratio, respectively)

Application

Titanium-ate enolates prepared from ketones by Ti(OiPr)4 and LDA underwent efficient radical trifluoromethylation providing trifluoromethyl ketones in good yield. Used in directed ortho-lithiation of arylsulfonyloxazolidinones to prepare N-substituted saccharin analogs.

Packaging

4×25, 100, 500 mL in Sure/Seal™
The 25 mL Sure/Seal bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Legal Information

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

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Asp. Tox. 1 - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - Skin Corr. 1B - STOT RE 2 Inhalation

Supplementary Hazards

Storage Class Code

4.3 - Hazardous materials, which set free flammable gases upon contact with water

WGK Germany

WGK 3

Flash Point(F)

-22.0 °F

Flash Point(C)

-30 °C

Certificate of Analysis

Certificate of Origin

Tetrahedron Letters, 47, 6405-6405 (2006)
Journal of Fluorine Chemistry, 127, 539-539 (2006)
Joshua D Schaefferkoetter et al.
Physics in medicine and biology, 60(14), 5543-5556 (2015-07-03)
In the context of investigating the potential of low-dose PET imaging for screening applications, we developed methods to assess small lesion detectability as a function of the number of counts in the scan. We present here our methods and preliminary...
Martin E Gosnell et al.
Biochimica et biophysica acta, 1863(1), 56-63 (2015-10-04)
Hyperspectral imaging uses spectral and spatial image information for target detection and classification. In this work hyperspectral autofluorescence imaging was applied to patient olfactory neurosphere-derived cells, a cell model of a human metabolic disease MELAS (mitochondrial myopathy, encephalomyopathy, lactic acidosis...
Mogens K Boisen et al.
PloS one, 9(10), e109430-e109430 (2014-10-21)
We tested the hypothesis that expression of microRNAs (miRNAs) in cancer tissue can predict effectiveness of bevacizumab added to capecitabine and oxaliplatin (CAPEOX) in patients with metastatic colorectal cancer (mCRC). Patients with mCRC treated with first line CAPEOX and bevacizumab...

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