Deoxytrifluoromethylthiolation and Selenylation of Alcohols by Using Benzothiazolium Reagents
作者:Stefan Dix、Michael Jakob、Matthew N. Hopkinson
DOI:10.1002/chem.201901607
日期:2019.6.7
Aliphatic compounds substituted with medicinally important trifluoromethylthio (SCF3) and trifluoromethylselenyl (SeCF3) groups were synthesized directly from alcohols by using the new benzothiazolium salts BT‐SCF3 and BT‐SeCF3. These bench‐stable fluorine‐containing reagents are facile to use and can be prepared in two steps from non‐fluorinatedheteroaromatic starting materials. The metal‐free d
[EN] FLUORINE-CONTAINING COMPOUNDS FOR USE AS NUCLEOPHILIC REAGENTS FOR TRANSFERRING FUNCTIONAL GROUPS ONTO HIGH VALUE ORGANIC COMPOUNDS<br/>[FR] COMPOSÉS CONTENANT DU FLUOR DESTINÉS À ÊTRE UTILISÉS EN TANT QUE RÉACTIFS NUCLÉOPHILES POUR TRANSFÉRER DES GROUPES FONCTIONNELS SUR DES COMPOSÉS ORGANIQUES À VALEUR ÉLEVÉE
申请人:UNIV BERLIN FREIE
公开号:WO2020141195A1
公开(公告)日:2020-07-09
The present invention relates to a compound of general formulae (I) and their use as reagents
本发明涉及一种一般式(I)的化合物及其作为试剂的用途。
[EN] STERICALLY HINDERED AMINE STABILIZERS<br/>[FR] STABILISANTS D'AMINES À ENCOMBREMENT STÉRIQUE
申请人:BASF SE
公开号:WO2010142572A1
公开(公告)日:2010-12-16
The instant invention pertains to hindered amine compounds having at least two nitrogen atoms with different basicity. One part is substituted on the N-atom by alkoxy moieties and the other part is substituted on the N-atom by a hydroxy-alkyl moiety. These materials are particularly effective in stabilizing polymers, especially thermoplastic polyolefins, against the deleterious effects of oxidative, thermal and actinic radiation. The compounds are also particularly effective in stabilizing acid catalyzed and ambient cured coatings systems.
4-Formyl amino-n-methylpiperidine derivatives, the use thereof as stabilisers and organic material stabilised therewith
申请人:——
公开号:US20030083406A1
公开(公告)日:2003-05-01
The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I)
1
where the variables are as defined in the Description, to a process for preparing these piperidine derivatives, to the use of these piperidine derivatives of the invention, or prepared according to the invention, for stabilizing organic material, in particular for stabilizing plastics or coating materials, and also to the use of these piperidine derivatives of the invention, or prepared according to the invention, as light stabilizers or stabilizers for wood surfaces.
The present invention further relates to stabilized organic material which comprises these piperidine derivatives of the invention or prepared according to the invention.
Bis(trimethylsilyl) peroxide (BTSP) serves as an effective oxidant of alcohols in the presence of chromium(VI) or ruthenium(II) complexes as catalysts in dichloromethane. Selective oxidation of primary alcohols in preference to secondary ones using RuCl2(PPh3)3 as a catalyst is also described.