3-CHLORO-3-METHYL-1-BUTYNE

Product Name: 3-CHLORO-3-METHYL-1-BUTYNE
CAS No.: 1111-97-3
Chemical Name: 3-CHLORO-3-METHYL-1-BUTYNE
Synonyms: 3-CHLORO-3-METHYLBUT-1-YNE;3-CHLORO-3-METHYLBUTYNE;3-chloro-3-methyl-1-butyn;3-CHLORO-3-METHYL-1-BUTYNE;3-Methyl-3-chloro-1-butyne;2-Chloro-2-methyl-3-butyne;1-Butyne, 3-chloro-3-methyl-;3-Chloro-3-methyl-1-butyne,96%;3-Chloro-3-methyl-1-butyne, 98%;3-Chloro-3-methyl-1-butyne, 95%,
CBNumber: CB0485757
Molecular Formula: C5H7Cl
Formula Weight: 102.56
MOL File: 1111-97-3.mol

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3-CHLORO-3-METHYL-1-BUTYNE Property

Melting point:: -61 °C (lit.)
Boiling point:: 73-75 °C (lit.)
Density: 0.913 g/mL at 25 °C (lit.)
refractive index: n20/D 1.418(lit.)
Flash point:: 40 °F
storage temp.: 2-8°C
solubility: Chloroform, Hexane (Slightly)
form: Liquid
color: Clear colorless to straw
Specific Gravity: 0.91
InChI: InChI=1S/C5H7Cl/c1-4-5(2,3)6/h1H,2-3H3
InChIKey: QSILYWCNPOLKPN-UHFFFAOYSA-N
SMILES: C#CC(Cl)(C)C
CAS DataBase Reference: 1111-97-3(CAS DataBase Reference)
EPA Substance Registry System: 1-Butyne, 3-chloro-3-methyl- (1111-97-3)

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Safety

Hazard Codes: F,Xn,Xi
Risk Statements: 11-20/21/22
Safety Statements: 16-26-36
RIDADR: UN 1993 3/PG 2
WGK Germany: 3
TSCA: Yes
HazardClass: 3
PackingGroup: II
HS Code: 29032990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 301345
Product name: 3-Chloro-3-methyl-1-butyne
Purity: 97%
Packaging: 5g
Price: $128.06
Updated: 2025/07/31

Sigma-Aldrich

Product number: 301345
Product name: 3-Chloro-3-methyl-1-butyne
Purity: 97%
Packaging: 25g
Price: $359.14
Updated: 2025/07/31

TRC

Product number: C369090
Product name: 3-Chloro-3-methyl-1-butyne
Packaging: 100g
Price: $375
Updated: 2021/12/16

GFS CHEMICALS

Product number: 80461
Product name: 3-CHLORO-3-METHYL-1BUTYNE
Packaging: 10g
Price: $210.5
Updated: 2021/12/16

Activate Scientific

Product number: AS23502
Product name: 3-Chloro-3-methyl-1-butyne
Purity: 97+%
Packaging: 25g
Price: $249
Updated: 2021/12/16

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3-CHLORO-3-METHYL-1-BUTYNE Chemical Properties,Usage,Production

Chemical Properties

Clear colorless to straw colored liquid

Uses

3-Chloro-3-methyl-1-butyne was used in preparation of:

series of benzo[b]pyrano[2,3-i]xanthen-6-ones and benzo[b]pyrano[3,2-h]xanthen-7-ones
6-hydroxy-3,3-dimethyl-3H,7H-benzo[a]pyrano[3,2-h]xanthen-7-one
5-hydroxy-2,2-dimethyl-2H,6H-benzo[a]pyrano[2,3-i]xanthen-6-one
3,3-dimethyl-3Hbenzofuro[3,2-f][1]-benzopyran

Uses

3-Chloro-3-methyl-1-butyne is a propargyl chloride used to alkylate methanol, ethanol, ammonia and amines to the corresponding propargylic ether and amines.

Synthesis

115-19-5

1111-97-3

The process is shown in Figure 1. First, the chlorination reactor was turned on and a reflux condensing unit was installed. The reaction vessel was cooled to 10 °C, followed by the sequential addition of concentrated hydrochloric acid, zinc chloride and polyethylene glycol 600. 2-methyl-3-butyn-2-ol was mixed with sulphuric acid and slowly added dropwise to the reaction vessel when the reactor temperature dropped to 0 °C. The reaction temperature was maintained at 0 °C for 2 hours. After the dropwise addition was completed, the reaction temperature was maintained between 0 and 5°C for 2 hours. Upon completion of the reaction, the mixture was transferred to a washing kettle for washing. This was followed by stirring and standing for layering. After separation of the aqueous layer, the organic layer was transferred to the extraction kettle. After filtration and drying, 3-chloro-3-methyl-1-butyne was obtained (95% yield, 99% purity).

References

[1] Patent: CN107903181, 2018, A. Location in patent: Paragraph 0007-0008; 0036-0040; 0054; 0058
[2] Chemistry - A European Journal, 2005, vol. 11, # 1, p. 308 - 320
[3] Chemical Communications, 2013, vol. 49, # 39, p. 4346 - 4348
[4] Journal of Labelled Compounds and Radiopharmaceuticals, 1996, vol. 38, # 12, p. 1077 - 1081
[5] European Journal of Organic Chemistry, 2014, vol. 2014, # 36, p. 8029 - 8034

3-CHLORO-3-METHYL-1-BUTYNE Preparation Products And Raw materials

Raw materials

Preparation Products

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3-CHLORO-3-METHYL-1-BUTYNE Suppliers

Belgium 1 Canada 1 China 163 Germany 4 Hungary 1 India 5 Japan 2 Russia 1 Switzerland 1 United Kingdom 7 United States 19 Global 205

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View Lastest Price from 3-CHLORO-3-METHYL-1-BUTYNE manufacturers

Shaanxi Dideu New Materials Co. Ltd

Product: 3-CHLORO-3-METHYL-1-BUTYNE 1111-97-3
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 98.0%
Supply Ability: 10000KGS
Release date: 2025-02-18

Shaanxi Dideu Medichem Co. Ltd

Product: 3-CHLORO-3-METHYL-1-BUTYNE 1111-97-3
Price: US $0.10/KG
Min. Order: 1KG
Purity: 98.0%
Supply Ability: 10
Release date: 2024-07-14

Zhuozhou Wenxi import and Export Co., Ltd

Product: 3-CHLORO-3-METHYL-1-BUTYNE 1111-97-3
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-08-11

1111-97-3, 3-CHLORO-3-METHYL-1-BUTYNERelated Search:

Chloromethyl silane TRANS-4-METHYL-2-PENTENE Methyltrichlorosilane 1-Methylcyclohexanol 3-METHYL-1-BUTYNE 1-Chloro-3-methyl-1-butyne-3-ol 4-Chloro-3-methyl-1-butyne 3-Chloropropyne Cyclohexane, 1-chloro-1-ethynyl- (6CI, 7CI, 8CI, 9CI) 1-CHLORO-1-HEX-1-YNYL-CYCLOHEXANE 3-CHLORO-1-BUTYNE 3-CHLORO-3-ETHYLBUTYNE 3-CHLORO-3-METHYL-1-BUTYNE

3-CHLORO-3-METHYL-1-BUTYNE, 97%3-CHLORO-3-METHYL-1-BUTYNE, 97%3-CHLORO-3-METHYL-1-BUTYNE, 97%3-CHLORO-3-METHYL-1-BUTYNE, 97%

3-Chloro-3-Methyl-1-butyne

2-Chloro-2-methyl-3-butyne

3-Methyl-3-chloro-1-butyne

3-Chloro-3-methyl-1-butyne,96%

3-Chloro-3-Methyl-1-butyne, 96% 1GR

3-Chloro-3-Methyl-1-butyne, 96% 25GR

3-Chloro-3-Methyl-1-butyne, 96% 5GR

3-CHLORO-3-METHYLBUT-1-YNE

3-CHLORO-3-METHYLBUTYNE

3-CHLORO-3-METHYL-1-BUTYNE

3-chloro-3-methyl-1-butyn

3-Chloro-3-methyl-1-butyne, 96%, for synthesis

1-Butyne, 3-chloro-3-methyl-

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

3-Chloro-3-methyl-1-butyne, 98%

1111-97-3

111-97-3

ClCCH32C8801CH

CH32CClCCH

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