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120368-13-0

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120368-13-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120368-13-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,3,6 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 120368-13:
(8*1)+(7*2)+(6*0)+(5*3)+(4*6)+(3*8)+(2*1)+(1*3)=90
90 % 10 = 0
So 120368-13-0 is a valid CAS Registry Number.

120368-13-0Downstream Products

120368-13-0Relevant articles and documents

STEREOELECTRONIC STABILIZATION IN NON-CHAIR CONFORMATIONS OF SUBSTITUTED-2,3-DIHYDRO-1,4-BENZODIOXEPINS

Lachapelle, Alain,St-Jacques, Maurice

, p. 5033 - 5044 (2007/10/02)

2,3-Dihydro-1,4-benzodioxepin (5) and its 3-substituted derivatives 6-9 have been studied by (13)C and (1)H dynamic NMR in two solvent systems of different polarity.The aromatic signals were found to be quite sensitive to the nature of the seven-membered cyclic geometries and were used as "conformational probes".The results show that the chair (C) conformation is the only form detected at -120 deg C for the parent compound 5 and its 3-methyl derivative 6 whereas the twist-boat (TB) comformation becomes predominant for three derivatives, 3,3-dimethyl 7, 3-metoxy 8 and 3,3-methylmethoxy 9, as a consequence of both steric and stereoelectronic interactions.Furthermore, in the case of 8, the detailed geometry of the TB forms detected reflects on the relative importance of competing stereoelectronic (anomeric and gauche) effects.

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