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3-benzoyl-4,5,5-trimethylfuran-2(5H)-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

33140-97-5

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33140-97-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33140-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,1,4 and 0 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 33140-97:
(7*3)+(6*3)+(5*1)+(4*4)+(3*0)+(2*9)+(1*7)=85
85 % 10 = 5
So 33140-97-5 is a valid CAS Registry Number.

33140-97-5Downstream Products

33140-97-5Relevant academic research and scientific papers

Versatile synthesis of acylfuranones by reaction of acylketenes with α-hydroxy ketones: Application to the one-step multicomponent synthesis of cadiolide B and its analogues

Peixoto, Philippe Alexandre,Boulange, Agathe,Leleu, Stephane,Franck, Xavier

, p. 3316 - 3327 (2013)

Functionalized acylfuranones have been prepared in a one-step procedure by thermal fragmentation of the corresponding dioxinones in the presence of hydroxy ketones in basic conditions. Multicomponent reactions also occur on addition of an aldehyde as a third reaction partner resulting in an expeditious access to cadiolide B and its analogues. A new method for the synthesis of acylfuranones is described based on the fragmentation of dioxinones to acylketenes followed by trapping with hydroxy ketones. Addition of an aldehyde as a third reaction partner leads to a supplementary aldolization/crotonization sequence resulting in an expeditious synthesis of cadiolide B and its analogues. Copyright

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