372510-69-5Relevant articles and documents
Palladium-catalyzed allyl cross-coupling reactions with in situ generated organoindium reagents
Lee, Kooyeon,Kim, Hyunseok,Mo, Juntae,Lee, Phil Ho
scheme or table, p. 2147 - 2157 (2011/10/31)
Inter- and intramolecular palladium-catalyzed allyl cross-coupling reactions, using allylindium generated in situ from allyl halides and indium, is demonstrated. Allylindium compounds may be effective nucleophilic coupling partners in palladium-catalyzed cross-coupling reactions. A variety of allyl halides, such as allyl iodide, allyl bromide, crotyl bromide, prenyl bromide, geranyl bromide, and 3-bromocyclohexene afforded the allylic cross-coupling products in good to excellent yields. Stereochemistry of the double bond is retained in the allylic cross-coupling reactions. Electrophilic cross-coupling partners, such as aryl and vinyl halides, dibromoolefin, alkynyl iodide, and aryl and vinyl triflates participate in these reactions. The presence of various substituents, such as n-butyl, ketal, acetyl, ethoxycarbonyl, nitrile, N-phenylamido, nitro, and chloride groups on the aromatic ring of electrophilic coupling partners showed little effect on the efficiency of the reactions. The present conditions work equally well for not only intermolecular but also intramolecular palladium-catalyzed cross-coupling reactions. These methods provide an efficient synthetic method for the introduction of an allyl group, which can be easily further functionalized to afford an sp2- and sp-hybridized carbon. The present method complements existing synthetic methods as a result of advantageous features such as easy preparation and handling, thermal stability, high reactivity and selectivity, operational simplicity, and low toxicity of allylindium reagents.
Convenient preparation of polyfunctional aryl magnesium reagents by a direct magnesium insertion in the presence of LiCl
Piller, Fabian M.,Appukkuttan, Prasad,Gavryushin, Andrei,Helm, Matthew,Knochel, Paul
supporting information; experimental part, p. 6802 - 6806 (2009/04/06)
(Chemical Equation Presented) In the footsteps of Victor Grignard: The simple LiCl-mediated insertion of magnesium into aryl chlorides and bromides at moderate temperatures leads to functionalized organomagnesium reagents (see scheme). An unprecedented range of functional groups may be present in the substrates (e.g. CN, CO2R, OTs, OBoc; Ts=p-toluenesulfonyl, Boc=tert-butylcarbonyloxy).
Synthesis of C2-C3′N-linked macrocyclic taxoids. Novel docetaxel analogues with high tubulin activity
Querolle, Olivier,Dubois, Jo?lle,Thoret, Sylviane,Roussi, Fanny,Guéritte, Fran?oise,Guénard, Daniel
, p. 5937 - 5944 (2007/10/03)
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
