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76638-82-9

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76638-82-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76638-82-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,6,3 and 8 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 76638-82:
(7*7)+(6*6)+(5*6)+(4*3)+(3*8)+(2*8)+(1*2)=169
169 % 10 = 9
So 76638-82-9 is a valid CAS Registry Number.

76638-82-9Upstream product

76638-82-9Downstream Products

76638-82-9Relevant articles and documents

Oxymetallation. Part 12. Further Syntheses of Monocyclic Peroxides via Peroxymercuriation

Bloodworth, A. J.,Khan, Jamil A.

, p. 2450 - 2457 (2007/10/02)

The scope of cycloperoxymercuriation as a route to monocyclic peroxides has been investigated by studying the reaction of mercury(II) nitrate with ten representative dienes plus hydrogen peroxide, and with two alkenyl hydroperoxides.By hydrogeno- and bromo-demercuriation of the resultant products, seven new methyl- and bromomethyl-substituted 1,2-dioxacyclo-pentanes and -hexanes have been prepared.The geometrical isomers of three of the 1,2-dioxacyclopentanes (4), (8), and (9) have been separated and assigned cis and trans configurations, and each of the four diastereoisomers of 4-bromo-3-bromomethyl-5-methyl-1,2-dioxacyclopentane (11) has been isolated.Two diastereoisomers of 4-bromo-6-bromomethyl-3-methyl-1,2-dioxacyclohexane (13) are formed and have been separated; their 1H n.m.r. spectra indicate that each has a chair conformation with equatorial methyl and bromomethyl groups, the stereoisomerism arising from the disposition of the bromine substituent.The by-products of peroxymercuriation-reduction have been shown to be unsaturated alcohols whose formation is strongly favoured where the cycloperoxymercurial contains an endocyclic mercurio-substituent.

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