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2-Methyl-2-((E)-5-oxo-5-phenyl-pent-3-enyl)-cyclopentane-1,3-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

690660-56-1

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690660-56-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 690660-56-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,6,6 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 690660-56:
(8*6)+(7*9)+(6*0)+(5*6)+(4*6)+(3*0)+(2*5)+(1*6)=181
181 % 10 = 1
So 690660-56-1 is a valid CAS Registry Number.

690660-56-1Relevant academic research and scientific papers

Enolate generation under hydrogenation conditions: catalytic aldol cycloreduction of keto-enones.

Huddleston, Ryan R,Krische, Michael J

, p. 1143 - 1146 (2007/10/03)

[reaction: see text] Formal heterolytic activation of elemental hydrogen under Rh catalysis enables the reductive generation of enolates from enones under hydrogenation conditions. Enolates generated in this fashion participate in catalytic C-C bond formation via carbonyl addition to aldehyde and, as demonstrated in this account, ketone partners. Notably, the use of appendant dione partners enables diastereoselective formation of cycloaldol products possessing 3-stereogenic centers, including 2-contiguous quaternary centers.

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