Oxymetallation. Part 24. Preparation of cyclic peroxides by cycloperoxymercuriation of unsaturated hydroperoxides.
作者:A.J. Bloodworth、Richard J. Curtis、Michael D. Spencer、Neil A. Tallant
DOI:10.1016/s0040-4020(01)86350-x
日期:1993.3
Seventeen unsaturated hydroperoxides have been converted by treatment with mercury(II) acetate and/or mercury(II) nitrate into nineteen new mercuriated cyclic peroxides and by subsequent demercuriation with alkaline sodium borohydride, six new mercury-free peroxides have been isolated. The results greatly extend the range of such reactions and provide information about the stereoselectivities and relative
Certain benzyloxymethyltetrahydrofuran derivatives are useful as herbicides.
某些苄氧甲基四氢呋喃衍生物可用作除草剂。
Obtention de tetrahydrofurannes fonctionnalises lors de l'action de reactifs organometalliques sur des γ,δ-epoxycetones
作者:Maurice Chastrette、Georges P. Axiotis
DOI:10.1016/s0022-328x(00)83466-x
日期:1981.2
The reaction of organolithium and organomagnesium reagents with γ,δ-epoxy ketones affords functionalized tetrahydrofurans by intramolecular cyclisation of an intermediate addition alkoxide. This cyclization is regioselective: the formation of a tetrahydrofuran is always observed while the tetrahydropyran isomer is never obtained. The oxiran ringopening is stereospecific and occurs with inversion of
A new and distinct variety of Miniature Rose Plant, herein referred to by its cultivar name, ‘KORpot083’, is provided which forms in abundance on a substantially continuous basis attractive, red and white striped colored blossoms. The vegetation is vigorous and the growth habit is compact. Attractive ornamental foliage is formed with good disease resistance. The new variety is particularly well suited for providing distinctive ornamentation in the landscape.