Zobrazeno 1 - 10
of 10
pro vyhledávání: '"George J. T. Kuster"'
Publikováno v:
European Journal of Organic Chemistry. 2004:4397-4404
The synthesis of N-organyloxy beta-lactams 2 by treatment of nitroso acetals 1 with a base is discussed. Based on the formation of a by-product, a mechanism for the rearrangement to N-organyloxy beta-lactams is proposed. The mechanism is supported by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45f45579679d22f4610d7996061d9d18
https://doi.org/10.1002/ejoc.200400371
https://doi.org/10.1002/ejoc.200400371
Publikováno v:
European Journal of Organic Chemistry. 2001:553-560
At 15 kbar the 1-nitro-2-heteroarylethenes 2a−c reacted in a one-pot three-component cycloaddition with p-methoxybenzyl vinyl ether (1) and methyl acrylate to yield novel heteroaromatic-substituted six/five-membered bicyclic nitroso acetals. In the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05fd1898e52767fc77592deba3a41a35
https://doi.org/10.1002/1099-0690(200102)2001:3<553::aid-ejoc553>3.0.co
https://doi.org/10.1002/1099-0690(200102)2001:3<553::aid-ejoc553>3.0.co
Autor:
Hans W. Scheeren, George J. T. Kuster
Publikováno v:
Tetrahedron Letters. 41:515-519
The preparation of resin-bound nitroalkenes via a microwave assisted Knoevenagel reaction of resin-bound nitroacetic acid with aryl and alkyl substituted aldehydes is described. The potential of these resin-bound nitroalkenes for application in combi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2dd0bd49f9b4a30747d2715f8683a84
https://doi.org/10.1016/s0040-4039(99)02108-5
https://doi.org/10.1016/s0040-4039(99)02108-5
Autor:
George J. T. Kuster, Hans W. Scheeren
Publikováno v:
Tetrahedron Letters. 39:3613-3616
High pressure was applied to perform tandem [4+2]/[3+2] cycloadditions of enol ethers with nitrostyrenes and resin-bound acrylate. The scope of this tandem cycloaddition was studied by using building blocks with an increasing substitution pattern, re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02b0218f4b7bc628b5bf667517516fda
https://doi.org/10.1016/s0040-4039(98)00563-2
https://doi.org/10.1016/s0040-4039(98)00563-2
Publikováno v:
ChemInform. 30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1d200f708f9494114784ca54fddc622
https://doi.org/10.1002/chin.199934183
https://doi.org/10.1002/chin.199934183
Autor:
Chris G. Kruse, Bart J. van Steen, Leo A. J. M. Sliedregt, Arnold van Loevezijn, Leon W. A. van Berkom, Floris P. J. T. Rutjes, Hans W. Scheeren, Mohamed Kalmoua, George J. T. Kuster
Publikováno v:
Journal of Combinatorial Chemistry, 8, 85-94
Journal of Combinatorial Chemistry, 8, 1, pp. 85-94
Journal of Combinatorial Chemistry, 8, 1, pp. 85-94
A seven-step solid-phase synthesis of spirohydantoins and an eight-step solid-phase synthesis of spiro-2,5-diketopiperazines is reported. Key intermediate in the synthesis of both compound libraries is the resin-bound cyclic alpha,alpha-disubstituted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09ae966c4da6ebb1474ea469a7c7c207
http://hdl.handle.net/2066/33042
http://hdl.handle.net/2066/33042
Publikováno v:
ChemInform. 35
In this paper the application of high pressure in multicomponent reactions is discussed. Using high pressure the scope of certain multicomponent reactions can be increased. Reactions are described that can only be performed in a multicomponent fashio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af43d078752bd1b4df6a8c3972d8a81c
https://doi.org/10.1002/chin.200438264
https://doi.org/10.1002/chin.200438264
Publikováno v:
ChemInform. 34
2-Methoxybuta-1,3-diene reacts under high pressure conditions in a one-pot domino (4+2)/(4+2)/(3+2) cycloaddition reaction with a dienophile, β-nitrostyrene and a dipolarophile to give tri, tetra and pentacyclic nitroso acetals. In this novel domino
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cee55573f0a00882fc82d962f581207
https://doi.org/10.1002/chin.200340163
https://doi.org/10.1002/chin.200340163
Autor:
George J. T. Kuster, Hans W. Scheeren
Publikováno v:
ChemInform. 34
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bd8b9c626df695be552611625130f51
https://doi.org/10.1002/chin.200332225
https://doi.org/10.1002/chin.200332225
Publikováno v:
Chemical Communications. :855-856
A high pressure promoted tandem [4 + 2]/[3 + 2] cycloaddition of β-nitrostyrene with a variety of enol ethers followed by a base catalysed rearrangement provided a novel class of di- and tricyclic N-oxy-β-lactam compounds.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82d6dd6a6d4274f161736fef7392b4f1
https://doi.org/10.1039/a901505a
https://doi.org/10.1039/a901505a