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138407-94-0

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138407-94-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138407-94-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,0 and 7 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138407-94:
(8*1)+(7*3)+(6*8)+(5*4)+(4*0)+(3*7)+(2*9)+(1*4)=140
140 % 10 = 0
So 138407-94-0 is a valid CAS Registry Number.

138407-94-0Relevant articles and documents

Tuning of α-Silyl Carbocation Reactivity into Enone Transposition: Application to the Synthesis of Peribysin D, E-Volkendousin, and E-Guggulsterone

Athawale, Paresh R.,Zade, Vishal M.,Rama Krishna, Gamidi,Reddy, D. Srinivasa

, p. 6642 - 6647 (2021/09/02)

A reliable method for enone transposition has been developed with the help of silyl group masking. Enantio-switching, substituent shuffling, and Z-selectivity are the highlights of the method. The developed method was applied for the first total synthesis of peribysin D along with its structural revision. Formal synthesis of E-guggulsterone and E-volkendousin was also claimed using a short sequence.

PtCl2/XPhos: A highly efficient and readily available catalyst for the hydrosilylation of propargylic alcohols

McLaughlin, Mark G.,Cook, Matthew J.

supporting information; experimental part, p. 11104 - 11106 (2011/11/07)

A highly regioselective hydrosilylation of propargylic alcohols has been developed using an in situ prepared PtCl2/XPhos catalyst system. The reaction is tolerant of many functional groups and exhibits excellent regio and geometric selectivity.

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