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2,3,4,4a,4b,5,6,7,8,8a-Decahydrophenanthren-9(1H)-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

18938-05-1

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18938-05-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18938-05-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,9,3 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 18938-05:
(7*1)+(6*8)+(5*9)+(4*3)+(3*8)+(2*0)+(1*5)=141
141 % 10 = 1
So 18938-05-1 is a valid CAS Registry Number.

18938-05-1Downstream Products

18938-05-1Relevant academic research and scientific papers

Formation of 2-cyclohexenones by Friedel-Crafts acylation of alkenes with β,γ-ethylenic acyl halides

Faure,Pommier,Pons,Rajzmann,Santelli

, p. 8419 - 8430 (2007/10/02)

Friedel-Crafts acylation of alkenes with β,γ-alkenoyl halides leads to conjugated Al-trienolates able to cyclize into Al-enolates of 2-cyclohexenones through an allowed thermal disrotary electrocyclization mechanism. Discussion of the product structures is based on two-dimensional NMR experiments (400 MHz) and molecular mechanics studies (GENMOL and MM2).

Synthetic Route to Tricyclic Carbon Compounds by Friedel-Crafts Acylation

Tubul, Arlette,Santelli, Maurice

, p. 191 - 192 (2007/10/02)

Acylation of cyclohexene by cyclohexenyl- or cyclopentenyl-acetyl chloride gave des-A-11-oxo or des-D-7-oxo steroids.

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