Cross-Coupling Reactions of Aryldiazonium Salts with Allylsilanes under Merged Gold/Visible-Light Photoredox Catalysis
A method for the cross-coupling reactions of aryldiazonium salts with trialkylallylsilanes via merged gold/photoredox catalysis is described. The reaction is proposed to proceed through a photoredox-promoted generation of an electrophilic arylgold(III) intermediate that undergoes transmetalation with allyltrimethylsilane to form allylarenes.
Akram, Manjur O.,Mali, Pramod S.,Patil, Nitin T.
supporting information
p. 3075 - 3078
(2017/06/23)
Method for producing Grignard compounds
The invention relates to a process for preparing Grignard compounds of the formula I. The invention additionally relates to compounds of the formula I and to polymer-bound compounds of the formula Ia. The invention further relates to the use of the process for preparing substance libraries and to the use of the compounds of the formulae I and Ia in chemical synthesis.
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Page/Page column 11-12
(2008/06/13)
Synthesis of C2-C3′N-linked macrocyclic taxoids. Novel docetaxel analogues with high tubulin activity
Novel C2-C3′N-linked macrocyclic taxoids 4 bearing an aromatic ring at position C2 were synthesized. These compounds, tethered between N3′ and the C2-aromatic ring at the ortho, meta, or para position, were constructed by ring-closing metathesis. The para
Querolle, Olivier,Dubois, Jo?lle,Thoret, Sylviane,Roussi, Fanny,Guéritte, Fran?oise,Guénard, Daniel
p. 5937 - 5944
(2007/10/03)
Preparation of highly functionalized Grignard reagents by an iodine-magnesium exchange reaction and its application in solid-phase synthesis
At -40°C aryl iodides that contain other functional groups can be selectively converted into Grignard reagents, which react with electrophiles such as benzaldehyde in the usual manner [Eq. (a)]. Aryl bromides and iodides that are immobilized as esters on a Wang resin behave analogously.
Boymond, Laure,Rottlaender, Mario,Cahiez, Gerard,Knochel, Paul
p. 1701 - 1703
(2007/10/03)
Cyclic Siloxanes with Mesogenic Side Groups
Cyclic liquid crystalline siloxanes (CLCS) are optical uniaxial positive (SA, N) and negative (N*) materials in accordance with calamitic structures.X-Ray measurements indicate, that the distances of SA layers correspond with the length of the monomer unit.In the case of mesogens with high polarity the distance is 1.7 fold the length of the monomer unit.A bundle model is proposed for CLC siloxanes.
Kreuzer, F.-H.,Andrejewski, D.,Haas, W.,Haeberle, N.,Riepl, G.,Spes, P.
p. 345 - 378
(2007/10/02)
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