693-61-8

Basic information

• Product Name: (E)-2-Undecene
• Synonyms: (E)-2-Undecene
• CAS NO: 693-61-8
• Molecular Formula: C₁₁H₂₂
• Molecular Weight: 154.29
• Mol File: 693-61-8.mol
• Article Data: 12

Chemical Properties

• Melting Point: -48.3°C
• Boiling Point: 187.71°C (estimate)
• Appearance: /
• Density: 0.7528
• Refractive Index: 1.4292
• CAS DataBase Reference: (E)-2-Undecene(CAS DataBase Reference)
• NIST Chemistry Reference: (E)-2-Undecene(693-61-8)
• EPA Substance Registry System: (E)-2-Undecene(693-61-8)

Safety Data

• Hazardous Substances Data: 693-61-8(Hazardous Substances Data)

Usage

Description

(E)-2-Undecene, with the molecular formula C11H22, is an alkene compound also referred to as an olefin. It exists as a colorless liquid with a distinct smell and is recognized for its diverse applications across various industries.

Uses

Used in Chemical Industry:
(E)-2-Undecene is used as an intermediate for the production of various chemicals, including synthetic lubricants, flavors, and fragrances. Its role in this industry is crucial for creating a range of products that serve different purposes and needs.
Used in Polymer and Plastics Production:
As a monomer, (E)-2-Undecene is integral to the manufacturing process of polymers and plastics. Its properties contribute to the development of materials with specific characteristics, enhancing their utility in multiple applications.
Used in Agricultural Industry:
(E)-2-Undecene is utilized as a pesticide in the agricultural sector, where it helps protect crops from pests and diseases, ensuring higher yields and better quality produce.
Used in Surfactant and Emulsifier Manufacturing:
In the production of surfactants and emulsifiers, (E)-2-Undecene plays a significant role. These substances are essential in various industries, including cosmetics, pharmaceuticals, and the food industry, for their ability to mix otherwise unblendable substances.

Upstream product

• 629-27-6 1-Iodooctane 
• 590-15-8 trans-2-propenyl bromide 
• 110-86-1 pyridine 
• 105-74-8 dilauryl peroxide 
• 693-03-8 n-butyl magnesium bromide 
• 62872-77-9 (E)-3-benzenesulfonyl-2-undecene 
• 100207-71-4 lauroyl cyanide 
• 18495-28-8 1-bromoundec-2-yne 
• 821-95-4 1-undecene 
• 107-01-7 butene-2 
• 112-62-9 Methyl oleate 
• 187737-37-7 propene 
• 8001-22-7 soybean oil 
• 1120-21-4 n-Undecane 

Relevant articles and documents

Integrated extraction and catalytic upgrading of microalgae lipids in supercritical carbon dioxide

Fatty acids from microalgae are attractive compounds for catalytic upgrading to chemicals, but their extraction often requires multi-step procedures and the use of various organic solvents. To relieve this bottleneck, we propose a straightforward approach of combined extraction and catalytic functionalization via olefin cross-metathesis (ethenolysis and butenolysis) in supercritical CO2 (scCO2). This is demonstrated for Phaeodactylum tricornutum microalgae biomass. ScCO2 at optimum conditions (90 °C, 620 atm, ρ(CO2) = 0.90 g mL-1) extracted the lipids selectively and quantitatively from previously disrupted cells, while organic solvent extraction for comparison additionally extracted polar diacylglycerides and chlorophylls. In a one-pot approach, olefin cross-metathesis of the unsaturated fatty acids (FA16:1, FA18:1 and FA20:5) by alkenolysis yielded the desirable mid-chain olefin and unsaturated ester products. The product spectrum compares to alkenolysis of individual model compounds in scCO2 as well as of separately scCO2 extracted microalgae oil. Both these ethenolysis and butenolysis proceed with conversions of more than 81% and high selectivities to the desired products. This biorefinery approach was further illustrated by the simultaneous extraction and catalytic isomerizing alkoxycarbonylation in scCO2.

SYNTHESIS OF TERMINAL ALKENES FROM INTERNAL ALKENES VIA OLEFIN METATHESIS

This disclosure relates generally to olefin metathesis, and more particularly relates to the synthesis of terminal alkenes from internal alkenes using a cross-metathesis reaction catalyzed by an olefin metathesis catalyst. According to one aspect, for example, a method is provided for synthesizing a terminal olefin, the method comprising contacting, in the presence of a ruthenium alkylidene metathesis catalyst, an olefinic substrate comprised of at least one internal olefin with a cross metathesis partner comprised of an alpha olefinic reactant, under reaction conditions effective to allow cross-metathesis to occur, wherein the reaction conditions include a reaction temperature of at least 35 °C. The methods, compositions, reactions and reaction systems herein disclosed have utility in the fields of catalysis, organic synthesis, and industrial chemistry.

REDUCTION DE DERIVES D'ALCOOLS PROPARGYLIQUES CATALYSEE PAR UN COMPLEXE DE PALLADIUM ZEROVALENT

Catalysis by tetrakis(triphenylphosphine)palladium of the reaction of hydride donnors with secondary propargylic bromides, mesylates and phosphates increases markedly the amount of allene produced.The best results in that direction are obtained with mesylates and phosphates by using lithium triethylborohydride.The reaction then occurs with an ANTI introduction of the hydride with respect to the leaving group.A mechanism is proposed which explains the influence of the various parameters of the reaction.