Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Peter G. Jones"'
Publikováno v:
Synthesis. 46:1773-1778
The synthesis of the first 4-methoxy-substituted 1,3-benzazaphosphole was accomplished by using a C , O -dilithium intermediate generated from N -(3-methoxyphenyl)-2,2-dimethylpropanamide and butyllithium. This intermediate was subjected either to
Autor:
Peter G. Jones, Georgios Markopoulos, Henning Hopf, Rajendran Saravanakumar, Lucian Gabriel Bahrin
Publikováno v:
Synlett. 24:453-456
Several substituted tribenzotriquinacene derivatives (TBTQ) carrying functional groups exclusively in the 2-position (OMe, OH, Br, CHO, CN, styryl, etc.) have been prepared by our new synthesis of the tribenzotriquinacene framework. The route has bee
Publikováno v:
Synlett. 23:545-548
A direct and highly selective synthesis of octahydropyrrolo[2,1,5- CD]indolizin-6-one derivativeshas been accomplished by a double dipolar cycloaddition of olefinicdipolarophiles to P-(di-methylamino)pyridiniumylides.
Publikováno v:
Synlett. 2011:1273-1276
A new class of mesogenic compounds, the perhydroazulenes, carrying substituents in their para positions (HAZ derivatives), has been synthesized. The new liquid crystalline materials display a broad enantiotropic nemantic mesophase slightly above room
Publikováno v:
Synthesis. 2010:2161-2170
Treatment of 2-tert-prenyltryptamines with N-bromo-succinimide gives clean access to the marine natural product flustramine C and analogues with the tert-prenyl group shifted to the 3a-position of the resulting pyrrolo[2,3-b]indole (70-80%). Dihydrof
Enantiospecific Synthesis of a Novel Rearranged Eunicellane Diterpenoid by SmI2-Mediated Cyclization
Publikováno v:
Synthesis. 2009:3941-3956
Aiming at the assembly of marine-derived diterpenoids, the synthesis and cyclization of α-geranylated carvones was investigated. 3-Hydroxyalkylation of side-chain hydrogenated carvone with geraniol-derived aldehydes gave access to diterpenoid allyl
Autor:
Shanta J. Persaud, Peter G. Jones, Raghavan Govindarajan, Peter J. Houghton, Henry Asare-Anane
Publikováno v:
Planta Medica. 73:427-432
Desmodium gangeticum is widely used in the indigenous system of medicine in India and is reported to contain flavone and isoflavonoid glycosides. It forms the ingredient of many Ayurvedic formulations used for diabetes. The present study was thus aim
Publikováno v:
Synlett. 24:995-997
Dimeric products were produced besides the monomeric (and expected) cyclization product, on subjecting diacetylenes to the conditions developed by Negishi (ZrCp 2 from ZrCp 2 Cl 2 and BuLi). The structures of the dimeric products were established b
Publikováno v:
Synthesis. :0067-0072
3-Ylidenepyrazine-2,5-diones 1 were stereoselectively epoxidsed by dimethyldioxirane giving access to spirooxiranes 2 and diols 3. Bromohydroxylation and bromoalkoxylation of 3-ylidenepyrazine-2,5-diones 1 produced high yields of optically active 3-(
Publikováno v:
Synlett. 2011:259-261
Orthogonal π-bridges have been introduced into [2.2]paracyclophanes by the reaction of the pseudo-geminal bisacetylene with various monoacetylenes and nitriles. The reactions with bistrimethylsilylacetylene and dimethylacetylenedicarboxylate take pl