Compositions stabilized with N-hydroxyiminodiacetic or dipropionic acids or esters thereof
申请人:CIBA-GEIGY AG
公开号:EP0269570A2
公开(公告)日:1988-06-01
A composition of matter comprising a polymer, resin, mineral fluid or synthetic fluid subject to oxidative, thermal and actinic degradation and at least a compound of formula (I)
wherein R1 and R2 are independently hydrogen, alkyl of 4,8 or 14 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, phenyl, phenyl substituted by alkyl of 1 to 12 carbon atoms, aralkyl of 7 to 9 carbon atoms or said aralkyl substituted by alkyl of 1 to 12 carbon atoms; and n is 1 or 2.
Harries; Haarmann, Chemische Berichte, 1904, vol. 37, p. 253
作者:Harries、Haarmann
DOI:——
日期:——
BALDWIN, J. E.;HARWOOD, L. M.;LOMBARD, M. J., TETRAHEDRON, 1984, 40, N 21, 4363-4370
作者:BALDWIN, J. E.、HARWOOD, L. M.、LOMBARD, M. J.
DOI:——
日期:——
US9633755B2
申请人:——
公开号:US9633755B2
公开(公告)日:2017-04-25
A general procedure for the synthesis of isoxazolidin-5-ones
作者:Jack E. Baldwin、Laurence M. Harwood、Michael J. Lombard
DOI:10.1016/s0040-4020(01)98811-8
日期:——
Conjugate addition of N-substituted hydroxylamines to α,β-unsaturated esters followed by cyclisation of the adducts with lithium bis (trimethylsily)amide provides the first general means of synthesising isoxazolidin-5-ones, the N-benzyl derivatives of which may be hydrogenolised to β-aminoacids.