The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-Chloropyridine 1-oxide(SMILESS: ClC1=CC=CC=[N+]1[O-],cas:2402-95-1) is researched.Safety of Methanesulfonato(2-dicyclohexylphosphino-2′,6′-di-i-propoxy-1,1′-biphenyl)(2′-amino-1,1′-biphenyl-2-yl)palladium(II). The article 《Marked changes in relative nucleophilic strength in comparing SN reactions of some heterocyclic and homocyclic aromatic systems》 in relation to this compound, is published in Journal of Chemical Research, Synopses. Let’s take a look at the latest research on this compound (cas:2402-95-1).
The kinetics of the nucleophilic substitution reactions of 2- and 4-chloropyridine 1-oxides (I and II, resp.) and 3,6-dichloropyridazine (III) with MeO- and PhS- in MeOH were determined Comparison of the results with those previously reported for 2,4-(O2N)2C6H3R (R = Cl, iodo) (IV and V, resp.), showed a marked change in the relative nucleophilicity of MeO- and PhS- and PhS- in MeOH. At 0° the PhS-/MeO- rate ratios for IV and V were 1.95 × 103 and 1.68 × 104, resp., whereas for I, II and III they were 5.03, 4.87 and 0.538, resp. These results are discussed in terms of retention of the arenide electrons in the heterocyclic ring.
This literature about this compound(2402-95-1)Quality Control of 2-Chloropyridine 1-oxidehas given us a lot of inspiration, and I hope that the research on this compound(2-Chloropyridine 1-oxide) can be further advanced. Maybe we can get more compounds in a similar way.
Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem