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[4-Methoxy-2-(toluene-4-sulfinyl)-phenyl]-carbamic acid tert-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

178043-05-5

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178043-05-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178043-05-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,0,4 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 178043-05:
(8*1)+(7*7)+(6*8)+(5*0)+(4*4)+(3*3)+(2*0)+(1*5)=135
135 % 10 = 5
So 178043-05-5 is a valid CAS Registry Number.

178043-05-5Downstream Products

178043-05-5Relevant academic research and scientific papers

Synthesis and Diels-Alder reactions of N-(tert-butoxycarbonyl)-3-p-tolylsulfinyl-1-benzoquinone-4-imine

Bartolome, Jose M.,Carreno, M. Carmen,Urbano, Antonio

, p. 3187 - 3190 (1996)

The title compound was synthesized in 3 steps (regioselective sulfenylation, m-CPBA and Pb(OAc)4 oxidations) from N-Boc-p-anisidine. Its Diels-Alder reactions with cyclopentadiene took place on the double bonds C2-C3 or C5-C6 depending upon the experimental conditions with total endo-selectivity and high π-facial diastereoselectivity. The cycloaddition with trans-piperylene occurred exclusively on the sulfinylsubstituted dienophilic double bond C2-C3.

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