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1269417-09-5

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1269417-09-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1269417-09-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,9,4,1 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1269417-09:
(9*1)+(8*2)+(7*6)+(6*9)+(5*4)+(4*1)+(3*7)+(2*0)+(1*9)=175
175 % 10 = 5
So 1269417-09-5 is a valid CAS Registry Number.

1269417-09-5Upstream product

1269417-09-5Downstream Products

1269417-09-5Relevant articles and documents

Iterative stereospecific reagent-controlled homologation using a functionalized α-chloroalkyllithium: Synthesis of cyclic targets related to epibatidine

Emerson, Christopher R.,Zakharov, Lev N.,Blakemore, Paul R.

supporting information; experimental part, p. 1318 - 1321 (2011/04/26)

Enantioenriched 1-chloro-2-(1,3-dioxolan-2-yl)ethyllithium was generated by PhLi initiated sulfoxide-ligand exchange and deployed in situ for sequential double stereospecific reagent-controlled homologation (StReCH) of B-(2-chloro-pyrid-5-yl) pinacol boronate. This process afforded highly functionalized contiguous stereodiad motifs (typically, % ee ≥ 98%, dr ≥ 85:15) amenable to subsequent annulative transformations as demonstrated by the concise synthesis (5-7 steps) of cyclic adducts related to the analgesic alkaloid epibatidine.

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