A short synthesis of (±)-laurene: mechanistic reinvestigation in palladium-catalyzed cycloreductions of 1,6-enynes
作者:Chang Ho Oh、Je Wook Han、Joo Sung Kim、Sung Yong Um、Hyung Hoon Jung、Won Hyung Jang、Ho Shik Won
DOI:10.1016/s0040-4039(00)01484-2
日期:2000.10
Two palladium-catalyzed cycloreduction strategies have been applied for the synthesis of laurene. Palladium-catalyzedcyclizations of 1,6-enynes initially form the corresponding alkylpalladium intermediates. While triethylsilane could directly reduce the intermediates to lead to the corresponding cycloreduced products, the intermediates in the presence of even excess formic acid underwent β-elimination
SRIKRISHNA, A.;SUNDERBABU, G., TETRAHEDRON LETT., 30,(1989) N7, C. 3561-3562
作者:SRIKRISHNA, A.、SUNDERBABU, G.
DOI:——
日期:——
Radical cyclization strategies to terpenoids; syntheses of (±)-β-cuparenone, (±)-laurene and epilaurenes
作者:A. Srikrishna、G. Sundarababu
DOI:10.1016/s0040-4020(01)90504-6
日期:1991.1
Radicalcyclization of the bromide , obtained in 5 steps from the ketone , furnished exclusively 6-endo trig cyclization with out any observable amount of 5-exo trig product . 5-Exo dig radical cyclizatlon of the bromo acetate , prepared from the aldehyde , followed by routine transformations furnished the cyclopentenone , an immediate precursor to β-cuparenone (). Similarly, total synthesis of laurenes
Marine Sesquiterpenes for Plant Protection: Discovery of Laurene Sesquiterpenes and Their Derivatives as Novel Antiviral and Antiphytopathogenic Fungal Agents
series of their derivatives. The antiviral activity and antifungal activity research showed that these compounds exhibited good to excellent biological activities. Compounds 7b and 8e displayed significantly higher antiviral activities against tobacco mosaic virus (TMV) than ribavirin and could be used as new antiviral candidates. The antiviral mode of action research indicated that compound 8e inhibited