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77406-92-9

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77406-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77406-92-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,0 and 6 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77406-92:
(7*7)+(6*7)+(5*4)+(4*0)+(3*6)+(2*9)+(1*2)=149
149 % 10 = 9
So 77406-92-9 is a valid CAS Registry Number.

77406-92-9Relevant articles and documents

REGIOSPECIFIC CARBON-CARBON BOND FORMATION AT α AND β POSITIONS IN CYCLIC KETONES VIA DOUBLE MICHAEL ADDITION TO α-METHYLENE-β-ALKOXY CYCLIC KETONE

Takahashi, Takashi,Hori, Kimihiko,Tsuji, Jiro

, p. 119 - 122 (2007/10/02)

Very reactive 2-methylene-3-alkoxycyclohexanone was synthesized.The 1,4-conjugate addition of various nucleophiles to this enone gave only β'-alkylated 2-cyclohexenone with simultaneous elimination of the β-alkoxy group.The second 1,4-conjugate addition of other nucleophile to the resulting cyclohexenone leads to the α and β disubstituted ketones.

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