Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Gareth M. Dixon"'
Publikováno v:
ARKIVOC, Vol 2006, Iss 12, Pp 38-45 (2006)
Externí odkaz:
https://doaj.org/article/08556afb93b54ea582ed22a2c0d271ff
Publikováno v:
ARKIVOC, Vol 2006, Iss 12, Pp 38-45 (2006)
The arylmethylidenecyclopropa[b]naphthalene family has been extended to include the 1and 2naphthyl and 9-anthryl derivatives (5-7). When subjected to Ag(I) in aprotic media, conditions typically employed for the linear dimerization of the parent cycl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b2b159d85e14d7a5c7c4fe321d61f64
https://doi.org/10.3998/ark.5550190.0007.c04
https://doi.org/10.3998/ark.5550190.0007.c04
Autor:
Rakesh N. Veedu, Christopher T. Parkin, Gareth M. Dixon, Curt Wentrup, Holger Bornemann, Brian Halton, Carissa S. Jones
Publikováno v:
Organic Letters. 7:949-952
Reaction of 1,1-dichloro-2,5-diphenylcyclopropabenzene 6 with Meldrum's acid 8 in the presence of pyridine leads to coupling of the cycloproparenyl cation 7 with the stabilized diketo anion 9. Subsequent, spontaneous, base-induced dehydrochlorination
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac23762791f69286d7c81133827b9fa8
https://doi.org/10.1021/ol050095f
https://doi.org/10.1021/ol050095f
Autor:
Brian Halton, Gareth M. Dixon
Publikováno v:
European Journal of Organic Chemistry. 2004:3707-3713
The first simple and stable cross-conjugated π-extended alkylidenecycloproparenes 5, 6 and 15−22 have been prepared as coloured crystalline derivatives from use of (E,E)-1,5-diphenylpenta-2,4-dienone, (E,E)-1,5-diarylpenta-1,4-dien-3-ones and (E,E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b05e81fa8d83099d642a534269242cc
https://doi.org/10.1002/ejoc.200400353
https://doi.org/10.1002/ejoc.200400353
Publikováno v:
Tetrahedron Letters. 45:2167-2170
Dipole moment measurements and calculations show the cyclopropa[b]naphthalene moiety to be an electron donor that is stronger than cycloheptatriene. Crystallographic analyses of cycloheptatrienylidenecyclopropa[b]naphthalenes, with and without electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63ccb408b074bfb70d976efa29700546
https://doi.org/10.1016/j.tetlet.2004.01.031
https://doi.org/10.1016/j.tetlet.2004.01.031
Autor:
Brian Halton, Gareth M. Dixon
Publikováno v:
Organic Letters. 4:4563-4565
[reaction: see text] The first derivative of the novel and highly strained rocketene (cyclobuta[a]cyclopropa[d]benzene) 5, namely, the C4 diphenyl-substituted exocyclic alkene 8, has been prepared in 16% overall yield as a yellow oil with properties
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdeef2e86cd6b07549c2ac45dd632a4c
https://doi.org/10.1021/ol027161n
https://doi.org/10.1021/ol027161n
Autor:
Brian Halton, Gareth M. Dixon
Publikováno v:
Organicbiomolecular chemistry. 2(21)
The Peterson olefination for alkylidenecycloproparene synthesis from a 1,1-disilylcycloproparene has been refined into five distinct protocols that have provided 43 new aryl- (5 and 6) and diaryl- (7 and 8), and aryl(phenyl)- (9 and 10) methylidene d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fa8bcc1a23a038077b662e205f8d0e0
https://pubmed.ncbi.nlm.nih.gov/15505720
https://pubmed.ncbi.nlm.nih.gov/15505720
Reaction of tetraphenylcyclopentadienone with (1H-cyclopropa[b]naphthalen-1-yltrimethyl)silane anion [derived by monodesilylation of 1,1-bis(trimethylsilyl)cyclopropa[b]naphthalene] gives the 1-(5'-cyclopentadienyl)substituted cycloproparene from sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e27fd30886c4c9893bad3a157890da1b
Publikováno v:
European Journal of Organic Chemistry. 2003:4467-4467
The cover picture shows the computed density potential (left) for the expected calicene from Peterson olefination of 1,1-disilylcyclopropa[b]naphthalene with tetracyclone. The alcohol actually obtained from the reaction is shown on the right in its f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::677cf95e77690109025fecba182d8ad2
https://doi.org/10.1002/ejoc.200390250
https://doi.org/10.1002/ejoc.200390250
Autor:
Gareth M. Dixon, Brian Halton
Publikováno v:
European Journal of Organic Chemistry; Sep2004, Vol. 2004 Issue 17, p3707-3713, 7p