One-Step Synthesis of Furan Rings from α-Isopropylidene Ketones Mediated by Iodine/DMSO: An Approach to Potent Bioactive Terpenes
作者:Jonida Salihila、Lúcia Silva、Helena Pérez del Pulgar、Ana Quílez Molina、Azucena González-Coloma、A. Sonia Olmeda、José F. Quílez del Moral、Alejandro F. Barrero
DOI:10.1021/acs.joc.9b00704
日期:2019.6.7
transformation of α-isopropylidene ketones into furan rings following a biomimetic approach. This methodology has been used for the synthesis of terpene furans such as mintfurane, curzerene, atractylon, and isoatractylon, all of them possessing interesting biological activities. The synthesis of linderazulene directly from 4,5-epoxygermacrone via a cascade reaction shows the potential of this protocol
Structural Diversity from the Transannular Cyclizations of Natural Germacrone and Epoxy Derivatives: A Theoretical-Experimental Study
作者:M. Carmen Pérez Morales、Julieta V. Catalán、Victoriano Domingo、Martín Jaraíz、M. Mar Herrador、José F. Quílez del Moral、José-Luis López-Pérez、Alejandro F. Barrero
DOI:10.1002/chem.201300662
日期:2013.5.17
Treatment of germacrone (1) with different electrophiles, and of its epoxyderivativesgermacrone‐4,5‐epoxide (2), germacrone‐1,10‐epoxide (3) and isogermacrone‐4,5‐epoxide (4) with Brönsted/Lewis acids and TiIII, gives rise to a great structuraldiversity. Thus, by using a maximum of two steps, the production of more than 40 compounds corresponding to 14 skeletons is described. Computational calculations
作者:John C. Coll、Bruce F. Bowden、Dianne M. Tapiolas、Richard H. Willis、Peter Djura、Margaret Streamer、Lindsay Trott
DOI:10.1016/s0040-4020(01)96476-2
日期:1985.1
mevalonolactone specifically into the terpene portion of a sesquiterpene hydroquinone is reported for the softcoral Sinularia capillosa Eudesma-4 , 7(11)-diene-8β-ol (20) and the corresponding 8-keto derivative (21) have been isolated from the softcoral Nephthea species for the first time The aeolid nudibranch Phyllodesmium longicirra was collected when feeding on the softcoral Sarcophyton trocheliophorum