35365-59-4

Usage

Uses

Used in Organic Synthesis:
9-Octadecyne is used as a building block in organic synthesis for the production of surface-active agents, plasticizers, lubricants, and other specialty chemicals. Its unique structure allows for the creation of a wide range of compounds with diverse applications.
Used in Materials Science:
In the field of materials science, 9-Octadecyne is used as a precursor for the formation of long-chain polymers through polymerization. These polymers exhibit unique properties that can be harnessed for various material applications.
Used in Biomedical Research:
9-Octadecyne has been investigated for its potential use in biomedical research as a chemical modifier. It can be employed to alter the properties of various biological molecules and surfaces, opening up new avenues for research and development in the medical and biological fields.

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 
• 764-93-2 1-decyne 
• 1071-84-7 1,1,1-trichlorononane 
• 111-87-5 octanol 
• 60212-29-5 undec-2-yne 

Downstream Products

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

Relevant academic research and scientific papers

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.

SEMICONDUCTING COMPOSITIONS COMPRISING SEMICONDUCTING POLYMERS

A semiconducting composition comprising a semiconducting polymer and a semiconducting non-polymeric polycyclic compound, wherein the semiconducting polymer comprises units of A and/or B: wherein R1, R2, R5, R6, R7, R8, x, y, p, q, r, R3, R4, R9, R10 and R11 have any of the meanings defined in the description.

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.

New angular-shaped and isomerically pure anthradithiophene with lateral aliphatic side chains for conjugated polymers: Synthesis, characterization, and implications for solution-prossessed organic field-effect transistors and photovoltaics

An isomerically pure anti-anthradithiophene (aADT) arranged in an angular shape is developed. Formation of the framework of aADT incorporating four lateral alkyl substituents was accomplished by a one-pot benzannulation via multiple Suzuki coupling. This newly designed 2,8-stannylated aADT monomer was copolymerized with a ditheniodiketopyrrolopyrrole (DPP) unit and a bithiophene unit, respectively, to furnish an alternating donor-acceptor copolymer poly(anthradithiophene-alt-dithienyldiketopyrrolopyrrole) (PaADTDPP) and a thiophene-rich poly(anthradithiophene-alt-bithiophene) (PaADTT). PaADTT with crystalline nature achieved a high FET mobility of 7.9 × 10-2 cm2 V-1 s-1 with an on-off ratio of 1.1 × 107. The photovoltaic device based on the PaADTDPP:PC71BM (1:2.5, w/w) blend exhibited a Voc of 0.66 V, a Jsc of 9.49 mA/cm2, and a FF of 58.4%, delivering a power conversion efficiency (PCE) of 3.66%. By adding 1.5 vol % 1-chloronaphthalene (CN) as a processing additive, the PCE can be improved to 4.24%. We demonstrated that these angular-shaped and alkylated aADT-based polymers have better organic photovoltaic (OPVs) and field-effect transistor (FETs) characteristics than the linear-shaped ADT-containing polymers.

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.