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104919-31-5

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104919-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104919-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,1 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 104919-31:
(8*1)+(7*0)+(6*4)+(5*9)+(4*1)+(3*9)+(2*3)+(1*1)=115
115 % 10 = 5
So 104919-31-5 is a valid CAS Registry Number.

104919-31-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-benzylidene-3-oxobutanenitrile

1.2 Other means of identification

Product number -
Other names 4-phenyl-3-cyano-3-buten-2-one

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:104919-31-5 SDS

104919-31-5Relevant articles and documents

trans-Selective hydrocyanation of ynoates, ynones and ynoic acids catalyzed by nucleophilic phosphines

Meyer, Maximilian,Peri?, Milica,Sch?mberg, Fritz,Vilotijevi?, Ivan

supporting information, (2021/10/04)

trans-Selective hydrocyanation of ynoates and ynones in the presence of TMSCN and an alcohol additive are catalyzed by nucleophilic phosphines. The trisubstituted E-olefin products of anti-addition of hydrogen cyanide to the alkyne are produced with high regio- and stereoselectivity. The alcohol additive reacts with TMSCN to produce hydrogen cyanide in situ. Ynoic acids undergo the phosphine catalyzed hydrocyanation in the presence of TMSCN under aprotic conditions only. In these reactions, TMSCN reacts with the acid to generate hydrogen cyanide and the silyl ester which, unlike the acid, undergoes phosphine catalyzed hydrocyanation and gives the stereo-defined E-2-cyano-acrylic acids after work up.

Phosphine-catalyzed reaction of cyanohydrins with activated alkynes

Siby, Acetou,Loreau, Olivier,Taran, Frederic

experimental part, p. 2365 - 2370 (2010/02/28)

A new method for preparing α-cyanoacrylates and α-cyanoenones is described. The procedure uses a phosphine-catalyzed α-C addition of cyanide ion, generated in situ from cyanohydrins, to activated alkynes. An unexpected tandem reaction producing benzyliden

ISOXAZOLINE OXIDATION. AN EFFICIENT METHOD FOR THE PREPARATION OF α,β-UNSATURATED CARBONYL COMPOUNDS

Padwa, Albert,Kline, Donald N.,Perumattam, John

, p. 913 - 916 (2007/10/02)

MCPBA peracid oxidation of Δ4-isoxazolines derived from the dipolar cycloaddition reaction of nitrones with acetylenes or allenes produces α,β-unsaturated ketones in excellent yield.

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