Zobrazeno 1 - 10
of 61
pro vyhledávání: '"G J, Young"'
Publikováno v:
Tetrahedron Letters. 44:2633-2636
An approach to the strained B,C-bicyclic nucleus of a heterocyclic class of steroids is described. The approach relies on a sigmatropic shift for installation of the strained bridge.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e424c627976c6a68e6713591b01aa90
https://doi.org/10.1016/s0040-4039(03)00378-2
https://doi.org/10.1016/s0040-4039(03)00378-2
Autor:
Dongxiang Zeng, David G. J. Young
Publikováno v:
The Journal of Organic Chemistry. 67:3134-3137
A synthetic approach to the hyperevolutin A acylated phloroglucinol ring system is described. Thus, intramolecular allene-nitrile oxide cycloaddition of 10 was used to construct the bicyclic framework and vicinal quaternary centers in cycloadduct 20
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f62b96c51c9ea6ffd8227aa2a3bb3ff2
https://doi.org/10.1021/jo010884k
https://doi.org/10.1021/jo010884k
Autor:
Anand Mayasundari, David G. J. Young
Publikováno v:
Tetrahedron Letters. 42:203-206
An approach to the synthesis of semicyclic dienes is described. The method employs a silicon-tethered version of the Heck reaction.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dbf1d631e6c13858cdcd4847305b065
https://doi.org/10.1016/s0040-4039(00)01910-9
https://doi.org/10.1016/s0040-4039(00)01910-9
Publikováno v:
Acta Crystallographica Section B Structural Science. 54:73-81
4,8-Dimethoxy-5-(tosyloxy)-1-naphthaldehyde (1) and 8-methoxy-5-(tosyloxy)-1-naphthaldehyde (2) crystallize such that the formyl groups approach coplanarity with the naphthalene rings. 4′,8′-Dimethoxy-5′-(tosyloxy)-1′-acetonaphthone (4), howe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a463ce16c0d90897c3643930c29926c
https://doi.org/10.1107/s0108768197009440
https://doi.org/10.1107/s0108768197009440
Autor:
J. R. Reynolds, G. J. Young
Publikováno v:
Annals of Glaciology. 24:60-65
Changes in planimetric area, elevation and volume were calculated for Athabasca Glacier, Alberta, Canada, below 2400 m elevation for the period 1919–79 from maps produced using aerial or terrestrial photogrammetry. Map contours were digitized and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d73bb69fe9dd86779d25ccbdf507529
https://doi.org/10.3189/s0260305500011940
https://doi.org/10.3189/s0260305500011940
Publikováno v:
Tetrahedron Letters. 37:827-830
Cyclohexylsiloxy hydrides ( e.g. , 6 ) undergo intramolecular hydrosilation with significantly higher levels of stereochemical control (versus their dimethylsilyl counterparts such as 3 ). The resulting spirocyclic silanes may serve as effective Lewi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c479ff757e7c6a378a8c13906548f8f5
https://doi.org/10.1016/0040-4039(95)02332-1
https://doi.org/10.1016/0040-4039(95)02332-1
Publikováno v:
Tetrahedron Letters. 42:5363-5365
A ring closing metathesis approach to medium sized rings is described. The methodology succeeds in the presence of a transition metal alkyne complex.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f75bbb4f83cb53011c5d9c68aa239dc9
https://doi.org/10.1016/s0040-4039(01)01017-6
https://doi.org/10.1016/s0040-4039(01)01017-6
Publikováno v:
ChemInform. 27
Cyclohexylsiloxy hydrides ( e.g. , 6 ) undergo intramolecular hydrosilation with significantly higher levels of stereochemical control (versus their dimethylsilyl counterparts such as 3 ). The resulting spirocyclic silanes may serve as effective Lewi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d8cdd7f52346c8480c2331c63f6fe33
https://doi.org/10.1002/chin.199622180
https://doi.org/10.1002/chin.199622180
Publikováno v:
ChemInform. 30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0d04b32885fa9b9d43b59be753c6ba8
https://doi.org/10.1002/chin.199930045
https://doi.org/10.1002/chin.199930045
