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(4R*,5R*)-4-(p-toluenesulfonyloxy)-1,2-diaza-7-oxaspiro<4.4>non-2-en-6-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

135261-15-3

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135261-15-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135261-15-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,2,6 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 135261-15:
(8*1)+(7*3)+(6*5)+(5*2)+(4*6)+(3*1)+(2*1)+(1*5)=103
103 % 10 = 3
So 135261-15-3 is a valid CAS Registry Number.

135261-15-3Downstream Products

135261-15-3Relevant academic research and scientific papers

SUBSTITUTED 1,2-DIAZA-7-OXASPIRONONEN-6-ONES; PREPARATION, NMR SPECTRA, AND CRYSTAL STRUCTURE

Jonas, Jaroslav,Glowiak, Tadeusz,Zak, Zdirad,Trska, Petr,Mazal, Ctibor

, p. 973 - 983 (2007/10/02)

Diazomethane adds to substituted 3-methylene-2(3H)-dihydrofuranones (Ia-Ii) to give the corresponding title dihydropyrazolospirodihydrofuranones (IIa-IIf, IIi, and IIj) or (IIIa, IIIg, and IIIh).NMR spectra of the adducts are discussed in some detail and the crystal structure has been solved for (4R*,5S*)-5-benzoyloxy-1,2-diaza-7-oxaspironon-1-en-6-one (IIa).

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