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87109-43-1

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87109-43-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87109-43-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,1,0 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 87109-43:
(7*8)+(6*7)+(5*1)+(4*0)+(3*9)+(2*4)+(1*3)=141
141 % 10 = 1
So 87109-43-1 is a valid CAS Registry Number.

87109-43-1Downstream Products

87109-43-1Relevant articles and documents

Catalytic, Enantioselective Syn-Oxyamination of Alkenes

Denmark, Scott E.,Hemric, Brett N.,Mumford, Emily M.

supporting information, p. 13408 - 13417 (2021/09/03)

The chemo-, regio-, diastereo-, and enantioselective 1,2-oxyamination of alkenes using selenium(II/IV) catalysis with a chiral diselenide catalyst is reported. This method uses N-tosylamides to generate oxazoline products that are useful both as protected

SYNTHESIS OF SINGLE ISOMERS (E OR Z) OF PROTECTED γ,δ-UNSATURATED KETONES BY THE HORNER-WITTIG REACTION

Cornish Christopher A.,Warren, Stuart

, p. 2585 - 2598 (2007/10/02)

The lithium derivative of the γ-diphenylphosphinoyl ketal (10a) added to aldehydes and ketones to give stable Horner-Wittig intermediates (11) which were separated and converted into single isomers (E or Z) or γ,δ-unsaturated ketals (12). erythro-Adducts (11) and hence Z-(12), were selectively formed by addition of aldehydes and threo adducts (11), and hence E-(12), by reduction of the corresponding α-diphenylphosphinoyl ketones (13), prepared by acylation of the same γ-diphenylphosphinoyl ketal (10a).

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