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70326-39-5

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70326-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70326-39-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,3,2 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 70326-39:
(7*7)+(6*0)+(5*3)+(4*2)+(3*6)+(2*3)+(1*9)=105
105 % 10 = 5
So 70326-39-5 is a valid CAS Registry Number.

70326-39-5Relevant articles and documents

Concentration effects in chelation controlled reactions

Springer,Springer, James B.,DeBoard,Deboard, Julie,Corcoran,Corcoran, Robert C.

, p. 8733 - 8736 (1995)

The diastereoselectivities of addition reactions of allyltrimethylsilane to an α-benzyloxyaldehyde were found to be relatively insensitive to the amount of added TiCl4, and to the absolute concentration of the 1:1 aldehyde/TiCl4 complex. In contrast, diastereoselectivities of similar additions to a structurally related β-benzyloxyaldehyde were highly dependent on these variables.

High Diastereoselection in the Aldol Reaction of the Bistrimethylsilyl Enol Ether of Methyl Acetoacetate with 2-Benzyloxyhexanal: Synthesis of (-)-Pestalotin

Hagiwara, Hisahiro,Kimura, Katsuhiko,Uda, Hisashi

, p. 693 - 700 (2007/10/02)

Aldol condensation of the bistrimethylsilyl enol ether of methyl acetoacetate, compound 2, with 2-benzyloxyhexanal 3c affords highly selectively (99:1) the syn-aldol adduct 4c in the presence of titanium tetrachloride.The stereocontrolled synthesis of (-)-pestalotin 7 has been achieved.

Application of Allenylsilanes in Annulation Approaches to Oxygen and Nitrogen Heterocycles

Danheiser, Rick L.,Kwasigroch, Carrie A.,Tsai, Yeun-Min

, p. 7233 - 7235 (2007/10/02)

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