Unusual [8 + 2] Annelation in the Reactions of Allenic Ester/Ketone-Derived 1,3-Dipoles with Tropone

Autor:	Kamal Kumar, and Ashish Kapur, Mohan Paul S. Ishar
Rok vydání:	2000
Předmět:	chemistry.chemical_classification Annulation Ketone Bicyclic molecule Chemistry Organic Chemistry Biochemistry Catalysis chemistry.chemical_compound Organic chemistry Reactivity (chemistry) Physical and Theoretical Chemistry Tropone Triphenylphosphine Selectivity
Zdroj:	Organic Letters. 2:787-789
ISSN:	1523-7052 1523-7060
DOI:	10.1021/ol000007l
Popis:	All-carbon 1,3-dipoles derived from allenic esters/ketones, by catalytic interaction with triphenylphosphine, undergo an unusual [8 + 2] annelation with tropone, leading to 8-oxa-9-(ethoxycarbonyl/acylalkylidene)bicyclo[5.3.0]deca-1,3,5-trienes. Dipoles derived from allenic ketones as well as an α-methyl-substituted allenic ester display high reactivity and selectivity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2ee2a0253e858ec826b5c46a2bac7486 https://doi.org/10.1021/ol000007l Zobrazit plný text záznamu