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53742-62-4

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53742-62-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53742-62-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,7,4 and 2 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 53742-62:
(7*5)+(6*3)+(5*7)+(4*4)+(3*2)+(2*6)+(1*2)=124
124 % 10 = 4
So 53742-62-4 is a valid CAS Registry Number.

53742-62-4Relevant articles and documents

Highly efficient chemoselective N-TBS protection of anilines under exceptional mild conditions in the eco-friendly solvent 2-methyltetrahydrofuran

Pace, Vittorio,Alcantara, Andres R.,Holzer, Wolfgang

supporting information; experimental part, p. 1986 - 1989 (2011/09/16)

A straightforward chemoselective protection of anilines as N-TBS derivatives is described by using a suitable deprotonation of the amine with methyllithium in the environmentally friendly and safer substitute of THF, 2-methyltetrahydrofuran, under exceptional mild reaction conditions (0 °C, 30 min). Interestingly, the protecting group maybe cleaved efficiently by simple treatment of N-TBS-anilines with silica gel in ethanol-water.

Novel Syntheses of Bis(trialkylsilyl)amines by Reductive Trialkylsilylation of Azo Compounds

Kira, Mitsuo,Nagai, Satoshi,Nishimura, Mitsushi,Sakurai, Hideki

, p. 153 - 156 (2007/10/02)

Reduction of azo compounds with a system of a trialkylchlorosilane and lithium has been found to afford bis(trialkylsilyl)amines in the presence of a transition metal halide as a catalyst in THF.The reaction course was significantly modified by using t-butyldimethylchlorosilane as a trialkylchlorosilane.

SELECTIVE N-MONOMETHYLATION OF PRIMARY AMINES via N-TRIALKYLSILYL-LITHIOAMINES

Calverley, Martin J.

, p. 601 - 610 (2007/10/02)

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