Biosynthesis of isoxazolin-5-one and 3-nitropropanoic acid containing glucosides in juvenile Chrysomelina
作者:Tobias Becker、Kerstin Ploss、Wilhelm Boland
DOI:10.1039/c6ob00899b
日期:——
(3-NPA) ester 2 in Chrysomelina larvae. Both structural elements originate from sequestered plant-derived β-alanine or from propanoyl-CoA that is derived from the degradation of some essential amino acids, e.g. valine. β-Alanine is converted into 3-NPA and isoxazolinone 5 by consecutive oxidations of the amino group of β-Ala. Substituting the diphospho group of α-UDP-glucose with 5 generates the isoxazolin-5-one
Thermal equilibrium between “isoxazolidine” and “enamine”
作者:R.A. Reamer、M. Sletzinger、I. Shinkai
DOI:10.1016/s0040-4039(00)78711-9
日期:1980.1
Nitrones formed from the reaction of -phenylhydroxylamine and aldehydes dimerized to isoxazolidines. A new thermalequilibriumbetween isoxazolidine and -hydroxyenamine in DMSO was studied by 1H and 13C NMR.
由-苯基羟胺和醛反应二聚形成异恶唑烷所形成的亚硝基。通过1 H和13 C NMR研究了DMSO中异恶唑烷和-羟基烯胺之间的新热平衡。
Michael, Chemische Berichte, 1905, vol. 38, p. 2087
作者:Michael
DOI:——
日期:——
Van Rompuy,L. et al., Journal of the Chemical Society. Perkin transactions I, 1973, p. 2503 - 2506
作者:Van Rompuy,L. et al.
DOI:——
日期:——
Isoxazolin-5-one
作者:Francesco De Sarlo、Giuliano Dini、Pasquale Lacrimini
DOI:10.1039/j39710000086
日期:——
The reaction paths leading from ethyl propiolate to isoxazolin-5-one (II) and isoxazolin-3-one (III) are discussed and shown to be pH-dependent. The chemical and tautomericproperties of compound (II) are consistent with the known behaviour of its derivatives. The apparent dissociation constants of (II) and of its derivatives are analysed in terms of contributions from the tautomers present in aqueous