Ethyl 4,4-dimethylpent-2-ynoate

Name: Ethyl 4,4-dimethylpent-2-ynoate
Brand: SynthonLab
SKU: 79424-03-6

CAS 79424-03-6 C₆H₅F₃O₂ 166.10 g/mol Catalogue item Internal Alkynes

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Structure of Ethyl 4,4-dimethylpent-2-ynoate, CAS 79424-03-6 — Structure · C6H5F3O2

CAS number: 79424-03-6
Molecular formula: C₆H₅F₃O₂
Molecular weight: 166.10 g/mol
Standard packing: 1kg / 25kg / 100kg

Ethyl 4,4-dimethylpent-2-ynoate (CAS 79424-03-6) is an ester building block of formula C6H5F3O2, 166.10 g/mol.

Methyl and ethyl esters of this size also serve as enolate equivalents in Claisen and alkylation chemistry, where the ester stabilises the carbanion. The methyl branch at C4 changes how the chain packs, which shows up in melting behaviour and in the solubility of the free material.

The formula C6H5F3O2 resolves to 6 carbons with 2 oxygens and 3 fluorines. With 6 carbons the molecule is small enough to be lost to evaporation during a work-up, so the step is usually run closed.

Handling and storage

Store neutral, dry and closed. The free acid that appears on hydrolysis is the impurity to check on a lot that has been open for months.

Ordering

Packing 1kg / 25kg / 100kg, with the batch COA, the SDS and a specification sheet suitable for incoming inspection travelling with the lot.

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1073132-25-8	(5Z)-5-Tetradecen-1-yne	C₁₄H₂₄	192.34	1kg / 25kg / 50kg	Request
62992-46-5	2-(Pent-4-yn-1-yloxy)tetrahydro-2H-pyran	C₁₀H₁₆O₂	168.23	1kg / 25kg / 100kg	Request
7218-43-1	2-[2-(Prop-2-ynyloxy)ethoxy]ethan-1-ol	C₇H₁₂O₃	144.17	1kg / 25kg / 100kg	Request
1719-19-3	2-Methyl-4-phenyl-3-butyn-2-ol	C₁₁H₁₂O	160.21	1kg / 25kg / 100kg	Request
2028-63-9	3-Butyn-2-ol	C₄H₆O	70.09	1kg / 25kg / 100kg	Request
1423-60-5	3-Butyn-2-one	C₄H₄O	68.07	1kg / 25kg / 100kg	Request
40365-61-5	3-Butynyl tetrahydro-2H-pyran-2-yl ether	C₉H₁₄O₂	154.21	1kg / 25kg / 100kg	Request
3355-31-5	3-Chloro-1-phenyl-1-propyne	C₉H₇Cl	150.60	1kg / 25kg / 100kg	Request

Specification

CAS	79424-03-6
Formula	C₆H₅F₃O₂
Molecular weight	166.10 g/mol
Packing	1kg / 25kg / 100kg
Assay	lot specific, on COA
Appearance	see COA
Storage	cool, dry, inert

Ordering

Catalogue items ship from stock or are made to order, whichever the lot status requires. A gram-scale sample is available before a kilo lot is committed.

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Supplied for laboratory and industrial use. Not for drug, cosmetic or household use.

Quotation

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Entry	Ethyl 4,4-dimethylpent-2-ynoate
CAS	79424-03-6
Typical lead time	Stock or 2–4 weeks
Documentation	COA, SDS, spec sheet

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Ethyl 4,4-dimethylpent-2-ynoate (79424-03-6)

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