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1942-45-6

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1942-45-6 Usage

Chemical Properties

CLEAR COLOURLESS TO SLIGHTLY YELLOW LIQUID

Uses

4-Octyne is a useful compound in organic synthesis.

General Description

The kinetics of the stereoselective semi-hydrogenation of 4-octyne (in tetrahydrofuran) was studied.

Check Digit Verification of cas no

The CAS Registry Mumber 1942-45-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,4 and 2 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1942-45:
(6*1)+(5*9)+(4*4)+(3*2)+(2*4)+(1*5)=86
86 % 10 = 6
So 1942-45-6 is a valid CAS Registry Number.
InChI:InChI=1/C8H14/c1-3-5-7-8-6-4-2/h3-6H2,1-2H3

1942-45-6 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • Alfa Aesar

  • (43157)  4-Octyne, 99%   

  • 1942-45-6

  • 5g

  • 464.0CNY

  • Detail
  • Alfa Aesar

  • (43157)  4-Octyne, 99%   

  • 1942-45-6

  • 25g

  • 925.0CNY

  • Detail
  • Aldrich

  • (244473)  4-Octyne  99%

  • 1942-45-6

  • 244473-5G

  • 237.51CNY

  • Detail
  • Aldrich

  • (244473)  4-Octyne  99%

  • 1942-45-6

  • 244473-25G

  • 649.35CNY

  • Detail

1942-45-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name oct-4-yne

1.2 Other means of identification

Product number -
Other names 4-OCTYNE

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1942-45-6 SDS

1942-45-6Relevant articles and documents

A highly active, heterogeneous catalyst for alkyne metathesis

Weissman, Haim,Plunkett, Kyle N.,Moore, Jeffrey S.

, p. 585 - 588 (2006)

(Chemical Equation Presented) An alkylidyne molybdenum amide complex is attached to nontoxic, amorphous silica to form a highly active, recyclable heterogeneous catalyst for alkyne metathesis. The catalyst does not undergo alkyne polymerization, can be utilized at a loading of 1 mol% at room temperature, and has shown unprecedented metathesis activity for the homodimerization of 2-propynylthiophene, a substrate that was previously problematic for alkyne metathesis.

-

Bauer,D.P.,Macomber,R.S.

, p. 2640 - 2642 (1976)

-

Staley,Doherty

, p. 288 (1969)

Selective terminal alkyne metathesis: Synthesis and use of a unique triple bonded dinuclear tungsten alkoxy complex containing a hemilabile ligand

Coutelier, Olivier,Nowogrocki, Guy,Paul, Jean-Francois,Mortreux, Andre

, p. 2259 - 2263 (2007)

The in situ synthesis of new alkyne metathesis catalysts is described, with particular emphasis on the search for tris-alkoxytungsten-based terminal alkyne metathesis. In that context, hemilabile, ether-containing alkoxy ligands have proved to be suitable and have led to the design and use of a sterically hindered hemilable ligand for the synthesis of a well-defined binuclear, triple-bonded W ≡ W complex. This complex is shown to be a highly active and selective catalyst precursor for terminal alkyne metathesis, and allows the unprecedented metathesis of phenylacetylene.

The Direct Conversion of α-Hydroxyketones to Alkynes

Ghiringhelli, Francesca,Nattmann, Lukas,Bognar, Sabine,Van Gemmeren, Manuel

, p. 983 - 993 (2019/01/24)

Alkynes are highly important functional groups in organic chemistry, both as part of target structures and as versatile synthetic intermediates. In this study, a protocol for the direct conversion of α-hydroxyketones to alkynes is reported. In combination with the variety of synthetic methods that generate the required starting materials by forming the central C-C bond, it enables a highly versatile fragment coupling approach toward alkynes. A broad scope for this novel transformation is shown alongside mechanistic insights. Furthermore, the utility of our protocol is demonstrated through its application in concert with varied α-hydroxyketone syntheses, giving access to a broad spectrum of alkynes.

Asymmetric Covalent Triazine Framework for Enhanced Visible-Light Photoredox Catalysis via Energy Transfer Cascade

Huang, Wei,Byun, Jeehye,R?rich, Irina,Ramanan, Charusheela,Blom, Paul W. M.,Lu, Hao,Wang, Di,Caire da Silva, Lucas,Li, Run,Wang, Lei,Landfester, Katharina,Zhang, Kai A. I.

supporting information, p. 8316 - 8320 (2018/06/29)

Complex multiple-component semiconductor photocatalysts can be constructed that display enhanced catalytic efficiency via multiple charge and energy transfer, mimicking photosystems in nature. In contrast, the efficiency of single-component semiconductor photocatalysts is usually limited due to the fast recombination of the photogenerated excitons. Here, we report the design of an asymmetric covalent triazine framework as an efficient organic single-component semiconductor photocatalyst. Four different molecular donor–acceptor domains are obtained within the network, leading to enhanced photogenerated charge separation via an intramolecular energy transfer cascade. The photocatalytic efficiency of the asymmetric covalent triazine framework is superior to that of its symmetric counterparts; this was demonstrated by the visible-light-driven formation of benzophosphole oxides from diphenylphosphine oxide and diphenylacetylene.

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