WebJun 27, 2024 · The Se-catalyzed oxidative cyclization was used as strategy in the synthesis of the (+)-Greek tobacco lactone 43, a natural-occurring bicyclic C 11-homoterpenoid, using (PhSe) 2 1a as the catalyst and either NFSI or molecular oxygen as the terminal oxidant . The key intermediate 42 was prepared from (R)-linalool 41 in three steps … WebCompound 1 is the first example of a 3/5/6/5 tetracyclic eudesmane sesquiterpene lactone formed at C-6 and C-7. ... Synthesis of (+)-Greek Tobacco Lactone via a Diastereoablative Epoxidation and a Selenium-Catalyzed Oxidative Cyclization. Organic Letters 2024, 19 (6) , 1478-1481. DOI: 10.1021/acs.orglett.7b00484. ...
Biosynthesis of C11 and C16 homoterpenes in higher plants ...
WebMar 12, 2024 · 20.5. Total synthesis of (+)-Greek tobacco lactone completed, congratulations Juha! 24.4. Bowling night and a farewell party for Martins Priede. 7.4.2014 Welcome to the group Gokarneswar Sahoo and Eduardo Rodrigo; 31.3.2014 Congratulations to Mikko, Billy, Aini, Antti, and our Hungarian collaborators on the JACS … WebAn enantioselective, protecting-group-free, total synthesis of (+)-Greek tobacco lactone has been achieved by using an organocatalytic Mukaiyama–Michael reaction and a stereospecific oxa-Michael reaction as key steps. how far is karon beach from patong
Synthesis of (+)-Greek Tobacco Lactone via a …
WebJan 28, 2014 · A one-pot transformation of alkan-1-ols into 2-chloroalkan-1-ols is described. As a practical application, terpene-derived primary alcohols were converted into semiochemicals such as olfactory lactones (aerangis lactone, whisky lactone, and cognac lactone) and pheromones (cruentol and ferrugineol). Using heptane-1,7-diol as a … WebDec 3, 1998 · An asymmetric synthesis of the C11-homoterpenoid (+)-Greek tobacco lactone is developed starting from readily available (R)-linalool and features a diastereoablative epoxidation and an oxidative tetrahydropyran formation using vanadium-, palladium-, and selenium-catalyzed cyclizations. WebMediterranean Breeze Restaurant, Ashburn, Virginia. 1,024 likes · 5 talking about this · 4,633 were here. Greek Authentic Family Restaurant. Established March 2004. how far is kansas city mo to st louis mo