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119488-20-9

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119488-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119488-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,4,8 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 119488-20:
(8*1)+(7*1)+(6*9)+(5*4)+(4*8)+(3*8)+(2*2)+(1*0)=149
149 % 10 = 9
So 119488-20-9 is a valid CAS Registry Number.

119488-20-9Relevant articles and documents

Palladium-Catalyzed Chemo- and Enantioselective C?O Bond Cleavage of α-Acyloxy Ketones by Hydrogenolysis

Chen, Jianzhong,Zhang, Zhenfeng,Liu, Delong,Zhang, Wanbin

, p. 8444 - 8447 (2016/07/19)

A chemoselective C?O bond cleavage of the ester alkyl side-chain of α-acyloxy ketones was realized for the first time by a highly efficient palladium-catalyzed hydrogenolysis (S/C=6000, the highest catalytic efficiency by far). Furthermore, a kinetic resolution of α-acyloxy ketones was first developed by enantioselective hydrogenolysis with good yields and up to 99 % ee.

ENCOUNTER OF AN INFERIOR INTRAMOLECULAR CYCLIZATION IN AN APPROACH TOWARD THE SYNTHESIS OF 10-OXO-2-THIAMETACYCLOPHANE:PREPARATION OF TWO ISOMERIC DIOXO-2,19-DITHIAMETACYCLOPHANES

Lai, Yee-Hing,Yeo, Lay-Hoon

, p. 1629 - 1636 (2007/10/02)

The sodium sulfide coupling of 1,2-bis(3-bromomethyl)phenylethanone, prepared in seven steps from m,α-dichlorotoluene, was attempted but failed to yield the desired 10-oxo-2-thia-metacyclophane.This is attributed to unfavorable geometry in the thiacy

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