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141375-87-3

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141375-87-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141375-87-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,3,7 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 141375-87:
(8*1)+(7*4)+(6*1)+(5*3)+(4*7)+(3*5)+(2*8)+(1*7)=123
123 % 10 = 3
So 141375-87-3 is a valid CAS Registry Number.

141375-87-3Relevant articles and documents

Two-step allylic carbon insertion between ketone carbonyl and α carbons giving α-quaternary α-vinyl ketones

He, Jing-Qian,Shibata, Daisuke,Ohno, Chihaya,Okamoto, Sentaro

scheme or table, p. 6724 - 6727 (2009/04/07)

Ketones 1 were converted to α-quaternary α-vinyl ketones 2 by a two-step formal allylic carbon insertion between ketone carbonyl and α carbons, which involves the reaction of 1 with propargyltitanium reagents, derived from propargyl carbonates 3 and a divalent titanium reagent Ti(O-i-Pr)4/2i-PrMgCl, and the following rearrangement of the resulting α-allenyl alcohols 4 with NBS.

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