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51310-26-0

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51310-26-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51310-26-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,3,1 and 0 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 51310-26:
(7*5)+(6*1)+(5*3)+(4*1)+(3*0)+(2*2)+(1*6)=70
70 % 10 = 0
So 51310-26-0 is a valid CAS Registry Number.

51310-26-0Relevant articles and documents

Synthesis of substituted indene derivatives via silver-catalyzed annulative 1:1 coupling of secondary benzyl alcohols with alkynes

Morisaka, Hideaki,Hirosawa, Keishi,Inai, Yasuhito,Usuki, Yoshinosuke,Satoh, Tetsuya

supporting information, p. 456 - 458 (2021/03/16)

The annulative coupling of secondary benzyl alcohols with internal alkynes efficiently proceeds in the presence of a silver catalyst. The reaction gives 1,2,3-substituted indene derivatives selectively as 1:1 coupling products. The procedure provides a straightforward synthetic route to indenes from readily available starting materials upon treatment with a simple reaction system under mild conditions.

Synthesis of substituted indenes through iron-catalyzed annulation of benzylic alcohols with alkynes

Bu, Xiuli,Hong, Jianquan,Zhou, Xigeng

supporting information; scheme or table, p. 2111 - 2118 (2011/10/09)

A convenient and efficient method for the synthesis of polysubstituted indenes has been developed by the iron(III) trichloride-catalyzed tandem mono- and dibenzylation/cyclization reactions of benzylic alcohols with alkynes. This method is featured with the easily available starting materials, cheap catalyst, simple manipulation and mild conditions. Copyright

Reactions of α-Oxoketenedithioacetals with Phenylmagnesium Bromide: Synhesis of Novel 1-Phenyl-1-methylthio-3-phenyl (or 2,3-Fused)-indenes and 2,3-Fused Heterocyclic-1,3-Diphenyl-2-alken-1-ones

Singh, Gurdeep,Ila, Hiriyakkanawar,Junjappa, Hiriyakkanawar

, p. 744 - 747 (2007/10/02)

Novel substituted and 1-methylthio-1-phenylindenes have been synthesised by boron trifluoride etherate cyclocondensations of the corresponding carbinol acetals obtained by sequential 1,4 and 1,2 additions of phenylmagnesium bromide to α-oxoketenedithioacetals.Some of these indenes have been desulphurized to give the parent ring systems.Synthesis of novel 2,3-fused heterocyclic 1,3-diphenyl-alken-1-ones by boron trifluoride-ether catalyzed methanolysis of the corresponding carbinol acetals has also been described.

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