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1111-97-3 - 3-Chloro-3-methyl-1-butyne, 95% - 1,1-Dimethylpropargyl chloride - B25252 - Alfa Aesar

B25252 3-Chloro-3-methyl-1-butyne, 95%

CAS Number
1111-97-3
Synonyms
1,1-Dimethylpropargyl chloride

Size Price ($) Quantity Availability
1g 31.22
5g 104.40
25g 349.08
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3-Chloro-3-methyl-1-butyne, 95%

MDL
MFCD00190221
EINECS
214-188-9

Chemical Properties

Formula
C5H7Cl
Formula Weight
102.57
Melting point
-61°
Boiling Point
73-75°
Flash Point
4°(40°F)
Density
0.913
Refractive Index
1.4178

Literature References

Reagent for an improved 2-step introduction of the 1,1-dimethylallyl (DMA) ester protecting group for carboxylic acids. Reaction with the acid in the presence of copper(I) iodide and cesium carbonate in DMF affords the 1,1-dimethylpropargyl ester. Hydrogenation with Pd/barium sulfate/quinoline affords the 1,1-dimethylallyl ester. The DMA group is resistant to nucleophilic attack, but readily cleaved under non-acidic conditions with Pd(0), which is an advantage compared with the tert-butyl ester in solid-phase peptide synthesis: Org. Lett., 7, 1473 (2005).

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GHS Hazard and Precautionary Statements

Hazard Statements: H225-H315-H319-H335

Highly flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P210-P261-P280-P240-P303+P361+P353-P305+P351+P338-P304+P340-P362-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. Ground/bond container and receiving equipment. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Hazard Class
3
Packing Group
II
Harmonized Tariff Code
2903.29
TSCA
Yes

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