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68318-08-1

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68318-08-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68318-08-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,3,1 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 68318-08:
(7*6)+(6*8)+(5*3)+(4*1)+(3*8)+(2*0)+(1*8)=141
141 % 10 = 1
So 68318-08-1 is a valid CAS Registry Number.

68318-08-1Downstream Products

68318-08-1Relevant articles and documents

A Novel Synthesis of Methylenecyclopropane Spiro-Linked with Cycloalkanes via a Cyclization of Allylic Epoxides and Its Application to a Synthesis of Fused 3-Methylfurans

Satoh, Tsuyoshi,Kawase, Yasushi,Yamakawa, Koji

, p. 1129 - 1135 (2007/10/02)

Ring closure of allylic epoxides derived from 1-chloroalkyl phenyl sulfoxides and cyclic ketones with lithium diisopropylamide (LDA) in 3-Exo-Tet mode gave spiro-linked methylenecyclopropanes having a hydroxyl group in good yields.Oxidation of these compounds gave ketones, which were then treated with p-toluenesulfonic acid in 1,4-dioxane or DMSO at 100 deg C to give fused 3-methylfurans in good overall yields.This procedure was applied to a synthesis of menthofuran from 4-methylcyclohexanone.

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