5101-44-0

Basic information

• Product Name: 2-ETHYNYL-PHENOL
• Synonyms: 2-ETHYNYL-PHENOL;Phenol, 2-ethynyl-;(2-Hydroxyphenyl)acetylene
• CAS NO: 5101-44-0
• Molecular Formula: C₈H₆O
• Molecular Weight: 118.13264
• Mol File: 5101-44-0.mol
• Article Data: 21

Chemical Properties

• Melting Point: 19 °C
• Boiling Point: 200.9 °C at 760 mmHg
• Flash Point: 87.4 °C
• Appearance: /
• Density: 1.12
• Vapor Pressure: 0.223mmHg at 25°C
• Refractive Index: 1.589
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• PKA: 8.62±0.30(Predicted)
• CAS DataBase Reference: 2-ETHYNYL-PHENOL(CAS DataBase Reference)
• NIST Chemistry Reference: 2-ETHYNYL-PHENOL(5101-44-0)
• EPA Substance Registry System: 2-ETHYNYL-PHENOL(5101-44-0)

Safety Data

• RIDADR: 3261
• HazardClass: 8
• PackingGroup: Ⅱ
• Hazardous Substances Data: 5101-44-0(Hazardous Substances Data)

Usage

Description

2-Ethynyl-phenol is a chemical compound that belongs to the class of organic compounds known as phenols. It is an aromatic chemical substance characterized by the presence of a hydroxyl (OH) group attached to an ethynyl group substituted phenyl ring. Its molecular formula is C8H6O, and its molecular weight is 118.1 g/mol. 2-ETHYNYL-PHENOL appears as a liquid and has a unique odor.

Uses

Used in Chemical Industry:
2-Ethynyl-phenol is used as a chemical intermediate for the production of certain types of resins, adhesives, and plastics. Its unique structure allows it to be a key component in the synthesis of various polymers and materials with specific properties.
Used in Pharmaceutical Industry:
2-Ethynyl-phenol is used as a starting material or intermediate in the synthesis of pharmaceuticals. Its chemical properties make it a valuable compound for the development of new drugs and therapeutic agents.
Used in Research and Development:
2-Ethynyl-phenol is used as a research compound in academic and industrial laboratories. Its unique structure and reactivity make it an interesting subject for studies in organic chemistry, material science, and related fields.

InChI:InChI=1/C8H6O/c1-2-7-5-3-4-6-8(7)9/h1,3-6,9H

Upstream product

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• 60-29-7 diethyl ether 

Downstream Products

• 380908-24-7 1-trimethylsilanylethynyl-2-trimethylsilanylethynyloxy-benzene 
• 1126639-06-2 2-(dec-1-ynyl)benzofuran 
• 1126639-00-6 2-(4-phenylbuta-1,3-diynyl)phenol 
• 77234-10-7 2-(2phenylethynyl)benzo[b]furan 
• 1126639-05-1 ethyl 3-(benzofuran-2-yl)propynoate 
• 1245256-09-0 C₈H₄⁽²⁾H₂O 
• 1219033-26-7 1,6-bis(2-ethynylphenoxy)-2,4-hexadiyne 
• 1029049-54-4 2-ethynylphenyl (2-butyn-1-yl) ether 
• 1029049-60-2 2-ethynyl-1-(3-trimethylsilyl-2-propynyloxy) benzene 
• 1029049-63-5 2-ethynylphenyl 3-(trimethylsilyl)propiolate 
• 1029049-57-7 butynoic acid 2-ethynyl-phenyl ester 
• 1111079-09-4 (E)-3-cyclohexyl-1-(2-hydroxyphenyl)prop-2-en-1-one 
• 118-93-4 o-hydroxyacetophenone 
• 42327-22-0 2-isopropylchroman-4-one 

Relevant articles and documents

A Facile Construction of Bisheterocyclic Methane Scaffolds through Palladium-Catalyzed Domino Cyclization

A convenient palladium-catalyzed domino cyclization reaction for the construction of bis(benzofuranyl)methane scaffolds bearing an all-carbon quaternary center has been described. In the cascade process, one C(sp2)—O bond, two C(sp2)—C(sp3) bonds as well as two benzofuran rings are formed in a single synthetic sequence. The approach shows wide scope of substrates and good functional-group tolerance. Moreover, this methodology is successfully extended to the synthesis of benzofuranyl methyl chromane derivatives.

Catalytic Transformations of Alkynes into either α-Alkoxy or α-Aryl Enolates: Mannich Reactions by Cooperative Catalysis and Evidence for Nucleophile-Directed Chemoselectivity

The catalytic formation of gold enolates from alkynes, nitrones, and nucleophiles is described, and their Mannich reactions result in nucleophile-directed chemoselectivity through cooperative catalysis. For 1-alkyn-4-ols and 2-ethynylphenols, their gold-catalyzed nitrone oxidations afforded N-containing dihydrofuran-3(2H)-ones with syn selectivity. The mechanism involves the Mannich reactions of gold enolates with imines through an O-H-N hydrogen-bonding motif. For aryloxyethynes, their gold enolates react selectively with nitrones to deliver 3-alkylidenebenzofuran-2-ones, as controlled by a C-H-O hydrogen-bonding motif.

Acetylenes from Aldehydes. Preparation of Ethynylphenols and Phenylacetylenes by Flash Vacuum Pyrolysis of Isoxazolones

The flash vacuum pyrolysis method of synthesis of acetylenes from aldehydes via isoxazolones is a convenient method for the preparation of a variety of derivatives, including kinetically unstable, sensitive compounds such as the ethynylphenols.