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84653-64-5

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84653-64-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84653-64-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,6,5 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 84653-64:
(7*8)+(6*4)+(5*6)+(4*5)+(3*3)+(2*6)+(1*4)=155
155 % 10 = 5
So 84653-64-5 is a valid CAS Registry Number.

84653-64-5Downstream Products

84653-64-5Relevant articles and documents

Synthesis and Properties of 2,4,6-Trimethylenetricyclo3,7>octane (Stellatriene) and Its Alkyl Derivatives. Candidates for a Two-Step Cope Rearrangement

Gleiter, Rolf,Sigwart, Christoph

, p. 1027 - 1038 (2007/10/02)

The synthesis of 2,4,6-trimethylenetricyclo3,7>octane (stellatriene, 9), its hexamethyl derivative 37, and the spirocyclic derivatives 67 and 68, substituted at the carbon atom of the saturated bridge of the tricyclic system, are described.Key steps in the syntheses include an intramolecular Paterno-Buechi reaction leading to tetracyclic oxetanes (e.g., 22b, 39, 47, 59, and 60) as well as the cleavage of the oxetane ring induced by various bases.During the synthesis several dienones were prepared (35, 41, 50, 63, and 64).The trienes and the dienones rearrange to triquinane derivatives at temperatures between 25 and 50 deg C.The half-lives of the molecules in solution have been determined, which indicate only a moderate effect of the methyl groups on the stability.The rearranged products can best be explained by assuming a stepwise Cope rearrangement via two allylic fragments.

Regio- et stereoselectivite de l'addition selon Diels-Alder des cetones α-alleniques

Gras, Jean-Louis

, p. 3032 - 3047 (2007/10/02)

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