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111679-77-7

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111679-77-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111679-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,6,7 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 111679-77:
(8*1)+(7*1)+(6*1)+(5*6)+(4*7)+(3*9)+(2*7)+(1*7)=127
127 % 10 = 7
So 111679-77-7 is a valid CAS Registry Number.

111679-77-7Downstream Products

111679-77-7Relevant articles and documents

PROPARGYL ORGANOMETALLIC COMPOUNDS. II. ALKYLATION OF SODIUM DERIVATIVES OF 1-ALKYL-1-ARYL-2-ALKYNES IN LIQUID AMMONIA

Libman, N. N.,Sevryukov, Yu. P.

, p. 68 - 75 (2007/10/02)

In most cases the alkylation of the sodium derivatives of 1-phenyl-1-alkyl-2-alkynes by methyl, ethyl, isopropyl, and tert-butyl bromides in liquid ammonia takes place preferentially at the sp2-hybridized carbon atom, and this leads to the formation of the corresponding acetylenes.The regioselectivity of the reaction is explained by the greater softness of the trigonal atom of the ambident propargyl anion and its smaller screening by the solvate shell compared with the diagonal atom.

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