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217311-72-3

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217311-72-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217311-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,3,1 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 217311-72:
(8*2)+(7*1)+(6*7)+(5*3)+(4*1)+(3*1)+(2*7)+(1*2)=103
103 % 10 = 3
So 217311-72-3 is a valid CAS Registry Number.

217311-72-3Upstream product

217311-72-3Downstream Products

217311-72-3Relevant articles and documents

Synthesis of optically active 2,3-substituted-1,2,3,4-tetrahydro-4- quinolones using polyleucine

Chen, Wei-Ping,Egar, Ann L.,Hursthouse, Michael B.,Malik, K.M. Abdul,Mathews, Jude E.,Roberts, Stanley M.

, p. 8495 - 8498 (1998)

Polyleucine catalyzes the asymmetric epoxidation of enone (1) in a non- aqueous medium to provide epoxy-ketones (2) and (3) (81 and 84% yields respectively; >98% ee). The epoxy-ketones (2) and (3) are subsequently cyclized to give 1,2,3,4-tetrahydro-4-qui

A new procedure for the Julia-Colonna stereoselective epoxidation reaction under non-aqueous conditions: The development of a catalyst comprising polyamino acid on silica (PaaSiCat)

Geller, Thomas,Roberts, Stanley M.

, p. 1397 - 1398 (2007/10/03)

Polyleucine adsorbed onto silica provides a robust, readily-recycled, highly active catalyst for the asymmetric epoxidation of the α,β-unsaturated ketones 1, 2, and 3.

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