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55815-00-4

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55815-00-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55815-00-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,8,1 and 5 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 55815-00:
(7*5)+(6*5)+(5*8)+(4*1)+(3*5)+(2*0)+(1*0)=124
124 % 10 = 4
So 55815-00-4 is a valid CAS Registry Number.

55815-00-4Relevant articles and documents

Regioselectivity of birch reductive alkylation of biaryls

Lebeuf, Raphael,Robert, Frederic,Landais, Yannick

, p. 4557 - 4560 (2005)

(Chemical Equation Presented) The regioselectivity of the Birch reductive alkylation of polysubstituted biaryls has been investigated. Results indicate that regioselectivity is affected by the electronic nature of substituents on both aromatic rings. The

Formation of meta-Substituted Phenols by Transition Metal-Free Aromatization: Use of 2-Bromocyclohex-2-en-1-ones

Yu, Guojun,Clive, Derrick L. J.

, p. 8470 - 8484 (2016/09/28)

Addition of Grignard or other organometallic reagents to 2-halocyclohex-2-en-1-ones bearing an alkyl or aryl group at C-5, followed by mild acid treatment and exposure to 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) at room temperature, generates meta-substituted phenols in which the newly introduced meta substituent originates from the Grignard reagent. The range of effective organometallic reagents includes alkyl, allyl, alkynyl, aryl, and heteroaryl compounds including those with fluorine substituents. The initial halocyclohexenone can be deprotonated at C-6 and reacted with carbon, fluorine, or sulfur electrophiles before the Grignard addition so as to generate highly substituted phenols.

Cyclic hydroxamic acids

-

, (2008/06/13)

This invention is related to a cyclic hydroxamic acid of the formula: STR1 wherein R1 is C1-24 alkyl and R2 is benzyl.

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