1530-34-3Relevant articles and documents
Novel methodology for the preparation of five-, seven-, and nine-membered fused rings on C60
Hatzimarinaki, Maria,Orfanopoulos, Michael
, p. 1775 - 1778 (2006)
The photocycloaddition of dienyl cyclopropanes to C60 gives a new synthetic approach to yield stereospecifically five-, seven-, and nine-membered [60]fullerene adducts. Our results suggest the formation of a biradical intermediate between the dienyl substrate and C60. An electron transfer between the triplet excited state of C60 and the dienyl substrate precedes the formation of the intermediate.
Photocycloaddition of biscyclopropyl alkenes to C60: An unprecedented approach toward cis-1 tricyclic-fused fullerenes
Tzirakis, Manolis D.,Alberti, Mariza N.,Orfanopoulos, Michael
supporting information; experimental part, p. 3364 - 3367 (2011/09/12)
A novel, simple, and entirely regioselective tandem cycloaddition of biscyclopropyl-substituted alkenes to [60]fullerene has been revealed. This reaction affords cis-1 tricyclic-fused organofullerenes bearing the hitherto elusive 5-4-5 fused tricyclic ring system.
Concerning the reactivity of ptad with isomeric dienes: The mechanism of the Diels-Alder cycloaddition
Alberti, Mariza N.,Orfanopoulos, Michael
supporting information; experimental part, p. 1659 - 1662 (2009/09/07)
Cyclopropyl substituted dienes are employed as mechanistic probes in the triazolinedione Diels-Alder (DA) reaction. In aprotic and protic solvents, apart from the DA adducts that bear an intact cyclopropyl group, complicated and rearranged products are also obtained. These results provide solid evidence for the involvement of an open intermediate with a lifetime greater than 2 x 10 -12 s.
