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Room Temperature and Solvent-Free Iridium-Catalyzed  Alkylation of Amines with Alcohols
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Syntetisk organisk kemi.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - BMC, Syntetisk organisk kemi.
(engelsk)Manuskript (preprint) (Annet vitenskapelig)
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-182645OAI: oai:DiVA.org:uu-182645DiVA, id: diva2:561039
Tilgjengelig fra: 2012-10-16 Laget: 2012-10-14 Sist oppdatert: 2012-11-12
Inngår i avhandling
1. Studies of Hydrogenations and Isomerizations of Olefins and Alkylations of Amines Using Iridium Catalysts
Åpne denne publikasjonen i ny fane eller vindu >>Studies of Hydrogenations and Isomerizations of Olefins and Alkylations of Amines Using Iridium Catalysts
2012 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

This thesis describes three types of reactions that were carried out using iridium catalysts.

The first type is the iridium-catalyzed asymmetric hydrogenation of olefins. In paper I, the preparation of a new type of bicyclic thiazole-phosphine based iridium complex was described. The new catalysts have displayed high activity and enantioselectivity in the asymmetric hydrogenation of unfunctionalized olefins. Papers II and III focus on the expansion of the substrate scope for the iridium catalyzed asymmetric hydrogenation in which a number of heterocyclic olefins were evaluated. In paper IV, the enantioselective asymmetric hydrogenation of α, β-unsaturated esters was described. The chiral products bearing tertiary stereogenic centers obtained by hydrogenation have great synthetic value and have been used in the synthesis of pharmaceuticals as well as in the total synthesis of natural products.

The second type is the asymmetric isomerization of allylic alcohols. In paper V, both cis and trans primary allylic alcohols were isomerized to the corresponding β-chiral aldehydes in high enantioselectivities by an N,P-chelating iridium complex.

The third type is the selective mono-N-alkylation of amines with alcohols. In paper VI, a phosphine/NHC based iridium catalyst was synthesized and applied in the alkylation of amines. It is the first time that this type of transformation is carried out at room temperature.

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2012. s. 65
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 982
Emneord
Iridium, Asymmetric, Hydrogenation, Isomerization, Alkylation
HSV kategori
Forskningsprogram
Organisk kemi
Identifikatorer
urn:nbn:se:uu:diva-182647 (URN)978-91-554-8502-3 (ISBN)
Disputas
2012-11-28, B21, BMC, Husaragatan 3, Uppsala, 10:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2012-11-07 Laget: 2012-10-14 Sist oppdatert: 2013-01-23

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