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Benzene, 1-ethynyl-2-(2-propynyloxy)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

66021-97-4

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66021-97-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66021-97-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,0,2 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 66021-97:
(7*6)+(6*6)+(5*0)+(4*2)+(3*1)+(2*9)+(1*7)=114
114 % 10 = 4
So 66021-97-4 is a valid CAS Registry Number.

66021-97-4Relevant academic research and scientific papers

Intermolecular and intramolecular pauson-khand reactions of functionalized Allenes

Gonzalez-Gomez, Alvaro,Anorbe, Loreto,Poblador, Amalia,Dominguez, Gema,Perez-Castells, Javier

supporting information; experimental part, p. 1370 - 1377 (2009/04/11)

Pauson-Khand reactions of functionalized allenes with different alkynes give cyclopentenones with generally high regio-and stereoselectivities. The allenes react through their external double bonds, giving cyclopentenones with exocyclic double bond at their β positions and predominantly with E stereochemistry. Some intramolecular reactions with allenynes connected through aromatic rings are described. These give the corresponding heterocycles with moderate to good yields. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.

Oxa-enediynes: Probing the electronic and stereoelectronic contributions to the bergman cycloaromatization

Jones, Graham B.,Wright, Justin M.,Hynd, George,Wyatt, Justin K.,Warner, Philip M.,Huber, Robert S.,Li, Aiwen,Kilgore, Michael W.,Sticca, Robert P.,Pollenz, Richard S.

, p. 5727 - 5732 (2007/10/03)

Efficient routes to three classes of 10-membered oxa-enediynes are presented. The electronic and stereoelectronic contributions to half-lives are supported by density functional theory calculations. One member of this class cyclizes to give an isochroman which binds to and degrades the aryl hydrocarbon receptor (AhR).

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