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165883-65-8

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165883-65-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 165883-65-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,8,8 and 3 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 165883-65:
(8*1)+(7*6)+(6*5)+(5*8)+(4*8)+(3*3)+(2*6)+(1*5)=178
178 % 10 = 8
So 165883-65-8 is a valid CAS Registry Number.

165883-65-8Downstream Products

165883-65-8Relevant articles and documents

Highly enantioselective ylide-mediated synthesis of terminal epoxides

Piccinini, Alessandro,Kavanagh, Sarah A.,Connon, Stephen J.

supporting information; experimental part, p. 7814 - 7816 (2012/09/05)

The highly efficient asymmetric epoxidation of aldehydes by methylene transfer is now possible using new sulfonium salts. This journal is

Enzymatic resolution of chlorohydrins for the synthesis of enantiomerically enriched 2-vinyloxiranes

McCubbin, J. Adam,Maddess, Matthew L.,Lautens, Mark

, p. 289 - 293 (2008/12/21)

A series of vinylchlorohydrins are resolved by enzymatic kinetic resolution. The resulting R-alcohols, obtained in up to 99% ee, are stereoselectively converted into vinyloxiranes in high yield. The S-acetates, obtained in up to 99% ee were either deprotected to S-alcohols, or cyclized directly to vinyl oxiranes under basic conditions, with moderate to no loss in ee. The results are consistent with a racemization mechanism involving reversible migration of the acetate during deprotection. Georg Thieme Verlag Stuttgart.

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