Zobrazeno 1 - 10
of 135
pro vyhledávání: '"Odón Arjona"'
Publikováno v:
ARKIVOC, Vol 2002, Iss 5, Pp 171-180 (2002)
Externí odkaz:
https://doaj.org/article/ab5d8e3ad2434883b0a32b53f0042d95
Publikováno v:
Tetrahedron Letters. 44:6369-6373
The conjugate addition of aliphatic and aromatic thiols to ethynyl p-tolyl sulphone (tosylacetylene) has been managed to afford Tosvinyl derivatives chemoselectively (in the presence of oxygen nucleophiles) and stereoselectively (isomers Z) in practi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ff8b9b17c442944db019522f444d383
https://doi.org/10.1016/s0040-4039(03)01614-9
https://doi.org/10.1016/s0040-4039(03)01614-9
Publikováno v:
Tetrahedron Letters. 43:6405-6408
The Staudinger reaction of imines derived from 7-oxanorbornenone with 2-alkoxyacetyl chlorides afforded spiro-β-lactams albeit with an unexpected stereochemistry. This was not the case with arylacetic acid chlorides, which gave rise to spiranic oxaz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9c5a10e4d3464d8c92125805469c9e6
https://doi.org/10.1016/s0040-4039(02)01375-8
https://doi.org/10.1016/s0040-4039(02)01375-8
Publikováno v:
ARKIVOC, Vol 2002, Iss 5, Pp 171-180 (2002)
ResearcherID
ResearcherID
The regiochemistry of the domino metathesis reaction of 2-endo substituted 7-oxanorbornenic allyl amines and allyl ethers have been studied. The results lead to two alternative reaction pathways, starting either by ring-opening metathesis of the endo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bdeb27a63aa084268d5bef6235a1c08
https://www.arkat-usa.org/arkivoc-journal/browse-arkivoc/ark.5550190.0003.519
https://www.arkat-usa.org/arkivoc-journal/browse-arkivoc/ark.5550190.0003.519
Publikováno v:
Helvetica Chimica Acta. 84:3667-3672
The reaction of amines, N-substituted by a 7-oxabicyclo[2.2.1]hept-5-en-2-ylidene moiety, either with PhSCl or mCPBA (meta-chloroperbenzoic acid) unexpectedly afforded the same type of furan derivatives by two different reaction paths. The results co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2429dde183801cb8b1ef62fef83db41f
https://doi.org/10.1002/1522-2675(20011219)84:12<3667::aid-hlca3667>3.0.co
https://doi.org/10.1002/1522-2675(20011219)84:12<3667::aid-hlca3667>3.0.co
Publikováno v:
Tetrahedron. 57:6751-6755
The synthesis of the C 1 –C 6 subunit of the potent antitumor agent discodermolide has been performed using 7-oxanorbornene derivatives, derived from furan, as key intermediates to control the stereochemistry of the incoming functional groups.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbfd8f812bd73856645ae14a19aeb5d1
https://doi.org/10.1016/s0040-4020(01)00622-6
https://doi.org/10.1016/s0040-4020(01)00622-6
Publikováno v:
Journal of Organometallic Chemistry. 627:105-108
A new metathesis-based route for the linking of two tetrahydrofuran moieties by an ethylene subunit has been developed. Treatment of an optically pure 2-substituted 7-oxanorborn-5-ene with Grubbs' ruthenium catalyst in the presence of allyl acetate a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24a110c21c3850dc3a2b72b8f9310786
https://doi.org/10.1016/s0022-328x(01)00726-4
https://doi.org/10.1016/s0022-328x(01)00726-4
Publikováno v:
Tetrahedron. 56:3901-3907
Lithium amides induce rearrangement of the title compounds 1 to afford nortricyclanones 4 via a ketocarbene intermediate. Compounds 4 undergo hydride transfer reduction and imino aldol condensation to afford the other observed reaction products.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e7050ebe27e77c7993b9f2399aacab2
https://doi.org/10.1016/s0040-4020(00)00294-5
https://doi.org/10.1016/s0040-4020(00)00294-5
Publikováno v:
The Journal of Organic Chemistry. 64:7338-7341
The regiochemistry of the Pauson−Khand reaction of 7-oxanorbornene derivatives can be influenced by a remote substituent at carbon C-2. Furthermore, a remarkable effect on the regiochemical outcome of this reaction was observed by halide substituen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4ac33d0c6882b6dc3b25392e9827dc4
https://doi.org/10.1021/jo9903095
https://doi.org/10.1021/jo9903095
Publikováno v:
Tetrahedron: Asymmetry. 10:3431-3442
The synthesis of (+)- 1 , a carbasugar related to rancinamycin III, has been achieved from diene (+)- 3 in two steps using as the key step the transformation of alkyne (−)- 2 , obtained by resolution of alcohol 6 , into diene (+)- 3 by treatment wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76481425fb830127d510fca47b8cb13e
https://doi.org/10.1016/s0957-4166(99)00358-4
https://doi.org/10.1016/s0957-4166(99)00358-4