Cas 143372-02-5,2-Hexynoic acid, phenylmethyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 143372-02-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,3,7 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 143372-02:
(8*1)+(7*4)+(6*3)+(5*3)+(4*7)+(3*2)+(2*0)+(1*2)=105
105 % 10 = 5
So 143372-02-5 is a valid CAS Registry Number.

143372-02-5Upstream product

5006-35-9 benzyl 3-oxohexanoate

143372-02-5Downstream Products

80313-75-3 (2E,4E)-benzyl hexa-2,4-dienoate

143372-02-5Relevant articles and documents

Palladium-catalyzed elimination/isomerization of enol triflates into 1,3-dienes

Crouch, Ian T.,Dreier, Timothy,Frantz, Doug E.

, p. 6128 - 6132 (2011/08/05)

Dying to be Dienes: Substituted 1,3-dienes were synthesized by the title reaction (see scheme; Tf=trifluoromethanesulfonyl). Preliminary studies support a mechanistically distinct pathway that involves an initial β-hydride elimination from a cationic vinyl palladium(II) intermediate, a subsequent regiospecific hydropalladation of the corresponding allene intermediate, and a final β-hydride elimination. Copyright

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143372-02-5