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158678-12-7

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158678-12-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158678-12-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,6,7 and 8 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 158678-12:
(8*1)+(7*5)+(6*8)+(5*6)+(4*7)+(3*8)+(2*1)+(1*2)=177
177 % 10 = 7
So 158678-12-7 is a valid CAS Registry Number.

158678-12-7Downstream Products

158678-12-7Relevant articles and documents

Simple preparation of cobaloxime dienyl complexes and their exo selective Diels-Alder cycloadducts. Progress toward transition metal-mediated Diels-Alder reactions which are catalytic in metal dienyl complex

Pickin, Kerry A.,Kindy, Jennifer M.,Day, Cynthia S.,Welker, Mark E.

, p. 120 - 133 (2003)

A new method for the synthesis of cobaloxime dienyl complexes (cobaloxime=pyridine(dimethylglyoxime)2Co) which involves a zinc-mediated hydrocobaltation of enynes is reported. Use of this dienyl complex synthesis method allows subsequent Diels-Alder reactions of these complexes to be accomplished without isolation of the dienyl complexes. A new silane-based cobaloxime-substituted cycloadduct demetallation protocol is then reported which provides Diels-Alder cycloadducts and cobalt complexes which have been recycled into the zinc-mediated dienyl complex synthesis.

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