Ruthenium(IV) (trifluoroacetate), a new oxidizing agent. III. An efficient access to the aporphine and homoaporphine skeletons and their structural studies.
作者:Y Landais、D Rambault、J.P Robin
DOI:10.1016/s0040-4039(00)95777-0
日期:1987.1
USE OF A SUBSTITUTED THIAZOLIDINE COMPOUND AS NITRIFICATION INHIBITOR
申请人:BASF SE
公开号:US20210276930A1
公开(公告)日:2021-09-09
The invention relates to novel nitrification inhibitors of formula I, which are substituted thiazolidine compounds. Moreover, the invention relates to the use of compounds of formula (I) as nitrification inhibitors, i.e. for reducing nitrification, as well as agrochemical mixtures and compositions comprising the nitrification inhibitors of formula (I).
Ruthenium dioxide in fluoro acid medium III. Application to the synthesis of aporphinic, homoaporphinic and dibenzazocinic alkaloids. Studies towards the preparation of azafluoranthenic skeleton.
作者:Yannick Landais、Jean-Pierre Robin
DOI:10.1016/s0040-4020(01)88259-4
日期:1992.1
Intramolecular oxidative couplings of phenylalkyltetrahydroisoquinoline precursors in aporphinic and homoaporphinic alkaloids by using RuO2,2H2O in fluoro acidic media were performed. A comparative study of our reagent with TTFA has been made with different precursors. The procedure was also extended to the synthesis of one dibenzazocinic alkaloid. Then, we attempted to synthetize the azafluoranthenic