Catalytic asymmetric hydroboration reaction of alkenes. Recycling of a catalyst

Identificador:  TDX:851

Handle:  https://hdl.handle.net/20.500.11797/TDX851

Autors:  Segarra González, Anna María

Resum:
of the thesis titled: 'Catalytic asymmetric hydroboration reaction of alkenes recycling of a catalyst'.The world is chiral. Most organic compounds are chiral. Chemists working with perfumes, cosmetics, nutrients, flavours, pesticides, vitamins, and pharmaceuticals, to name a few examples, require access to enantiomerically pure compounds. But, how might we obtain enantiomerically pure compounds? The asymmetric synthesis permits to convert an achiral substance into a chiral, nonracemic one by the action of a chiral reagent. In this context, the asymmetric catalysis is of some importance. The catalysed reaction can be accelerated by small amounts of transition-metal complexes. In addition, it is an interesting strategy for enantioselectivity of the process.The chiral catalytic system must be designed so that it can be easily recovered from the products and reused, and which responds to the challenge of improving the environmental and economic viability of the asymmetric process. All this point, we planned to develop in the present thesis the following aspects: 1) understand how high activity and selectivity can be generated thought the hydroboration process and 2) design of a chiral catalytic system that can be easily recovered form the products and reused in the catalytic asymmetric hydroboration reaction.