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109900-84-7

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109900-84-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109900-84-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,0 and 0 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 109900-84:
(8*1)+(7*0)+(6*9)+(5*9)+(4*0)+(3*0)+(2*8)+(1*4)=127
127 % 10 = 7
So 109900-84-7 is a valid CAS Registry Number.

109900-84-7Relevant articles and documents

Intramolecular -Cycloaddition Chemistry of Some 1,3-Dienyl-Substituted Cyclopropenes

Padwa, Albert,Kulkarni, Yashwant S.,Terry, Lenny W.

, p. 2478 - 2486 (2007/10/02)

The thermal reaction of several 1,3-dienyl-substituted diphenylcyclopropenes has been studied.Thermolysis of these systems give products derived from an intramolecular -cycloaddition.The reaction involves bond formation between the dienyl ?-bond and

NUCLEOPHILIC SUBSTITUTION REACTIONS OF 1-SULFONYL SUBSTITUTED CYCLOPROPENES WITH ALKYL LITHIUM REAGENTS

Padwa, Albert,Wannamaker, M. Woods

, p. 5817 - 5820 (2007/10/02)

Sulfonyl substituted cyclopropenes react with a variety of alkyl lithium reagents to give disubstituted cyclopropenes in good yield.

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