摘要:
The present invention refers to a process for direct C—H functionalization, the reagents used in the process and the use thereof for the direct C—H functionalization as well as the so-obtained products.
摘要:
The present invention refers to processes for catalytic reversible alkene-nitrile interconversion through controllable HCN-free transfer hydrocyanation.
摘要:
The present invention refers to a process making use of a radical initiator system comprising peroxy compounds, in particular peroxyketals, in the presence of an acid catalyst to initiate radical processes at low temperature, such as room temperature and below.
摘要:
The present invention refers to processes for preparing catalyst loaded polyphenylene particles, the so-obtained polyphenylene particles and their use as catalysts.
摘要:
The present invention deals with the synthesis and applications of new cationic compounds being useful as metal ligands. Specifically, N-alkyl/aryl substituted pyridiniophosphines are prepared and used as ligands for transition metals. The so-obtained metal complexes and their use as catalysts in chemical synthesis is also described. It also worth mentioning that N-alkyl/aryl pyridiniophosphines can be synthesized through a short, scalable and highly modular route.
摘要:
The present invention refers to a process for the ruthenium-catalyzed trans-selective hydrostannation of alkynes and the so-obtained products. The inventive process makes use of a tin hydride which is reacted with an alkyne in the presence of a cyclopentadienyl-coordinated ruthenium catalyst.
摘要:
Phosphenium compounds with the general formula I: in whichR1, R2, R3 and R4 are identical or different and represent a linear or branched C1-C6-alkyl radical, which can optionally be substituted, or R1 and R2 and/or R3 and R4 are bonded to one another with the formation of a ring,R5 and R6 stand for a saturated or unsaturated and linear or branched alkyl group, alkenyl group or aryl group, which can have suitable substituents, even heteroatoms as substituents, or a heteroatom-comprising hydrocarbon group, which can have suitable substituents, and the R5 and R6 radicals can form a ring which can be 4- to 20-membered, saturated or unsaturated and alicyclic or heteroalicyclic and can exhibit suitable substituents, X− represents an anion,a process for the preparation thereof, and also the use of these compounds in metal complexes which can be used as catalysts in organic synthesis, are claimed.