35365-59-4

Basic information

• Product Name: 9-OCTADECYNE
• Synonyms: 9-OCTADECYNE;octadec-9-yne
• CAS NO: 35365-59-4
• Molecular Formula: C₁₈H₃₄
• Molecular Weight: 250.46
• Mol File: 35365-59-4.mol
• Article Data: 5

Chemical Properties

• Melting Point: 1.5°C
• Boiling Point: 313.6°C (estimate)
• Flash Point: 145.4°C
• Appearance: /
• Density: 0.8012
• Vapor Pressure: 0.000569mmHg at 25°C
• Refractive Index: 1.4488
• CAS DataBase Reference: 9-OCTADECYNE(CAS DataBase Reference)
• NIST Chemistry Reference: 9-OCTADECYNE(35365-59-4)
• EPA Substance Registry System: 9-OCTADECYNE(35365-59-4)

Safety Data

• Hazardous Substances Data: 35365-59-4(Hazardous Substances Data)

Usage

General Description

9-Octadecyne is a chemical compound with the molecular formula C18H34. It is a long-chain alkynyl compound, meaning it contains a carbon-carbon triple bond. 9-Octadecyne is a colorless liquid at room temperature, with a boiling point of 305°C. It is mainly used as a building block in organic synthesis, particularly in the production of surface-active agents, plasticizers, lubricants, and other specialty chemicals. It has also been studied for its potential applications in the field of materials science, as it can undergo polymerization to form long-chain polymers with unique properties. Additionally, 9-octadecyne has been investigated for its potential use in biomedical research as a chemical modifier for various biological molecules and surfaces.

InChI:InChI=1/C18H34/c1-3-5-7-9-11-13-15-17-18-16-14-12-10-8-6-4-2/h3-16H2,1-2H3

Upstream product

• 111-83-1 1-bromo-octane 
• 1066-26-8 sodium acetylide 
• 70277-75-7 lithium acetylide 
• 95278-34-5 9,9,10,10-tetrachloro-octadecane 
• 94376-05-3 9,10-dichloro-octadec-9-ene 
• 60212-29-5 undec-2-yne 
• 111-87-5 octanol 
• 1071-84-7 1,1,1-trichlorononane 
• 764-93-2 1-decyne 

Downstream Products

• 18394-00-8 9-octadecanone 
• 1089-40-3 1,2-Dioctyl-cyclopropen 

Relevant articles and documents

Synthesis of Aminoallenes via Selenium-π-Acid-Catalyzed Cross-Coupling of N-Fluorinated Sulfonimides with Simple Alkynes

The facile synthesis of aminoallenes, accomplished by a selenium-π-acid-catalyzed cross-coupling of an N-fluorinated sulfonimide with simple, non-activated alkynes, is reported. Until now, aminoallenes were difficult to be accessed by customary means, inasmuch as pre-activated and, in part, intricate starting materials were necessary for their synthesis. In sharp contrast, the current study shows that ordinary internal alkynes can serve as simple and readily available precursors for the construction of the aminoallene motif. The operating reaction conditions tolerate numerous functional groups such as esters, nitriles, (silyl)ethers, acetals, and halogen substituents, furnishing the target compounds in up to 86 % yield.

Organic small molecular semiconductor material containing anthracene dithiophene as well as preparation method and application thereof

The invention discloses an organic small molecular semiconductor material containing anthracene dithiophene as well as a preparation method and an application thereof. The structural formula of the material is as shown in a formula I, wherein the unit A is an electron deficient group; R1 is hydrogen or alkyl with 1-30 carbon atoms or a group in the alkyl with 1-30 carbon atoms, one or more of which are replaced by halogen atoms, oxygen atoms, alkenyl, alkynyl, aryl, hydroxyl, amino, carboxyl, ester groups, cyan or nitryl. The material has unique advantages of relatively good light capturing ability, proper electronic energy level, relatively high electronic mobility and the like, and is applied to organic solar battery apparatuses as an electron acceptor material to obtain good apparatus performances.

Alkyne metathesis: Toward simplicity and efficiency

No catalyst pre-activation, no suicide alkyne, and no additive is required in an extremely simple procedure for the metathesis of alkyl-, alkenyl-, and aryl-propynes: just mix Mo(CO)6, p-chlorophenol, and the alkyne in 1,2-dichloroethane, heat at 85°C for 9-24 h, and the symmetrical alkyne is produced in ca. 95% yield.