10.1021/ol802792g.s001
Michael E. Jung
Michael E.
Jung
Damian A. Allen
Damian A.
Allen
Use of 4-Cyanocoumarins as Dienophiles in a Facile Synthesis of Highly Substituted Dibenzopyranones
American Chemical Society
2009
silyloxy groups
cyano
silyloxydiene
Dienophile
dibenzopyranones 14
cycloaddition
adducts 13
Cyanocoumarin
Diel
cyanocoumarin
synthesis
Facile Synthesis
Substituted Dibenzopyranones
2009-02-05 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Use_of_4_Cyanocoumarins_as_Dienophiles_in_a_Facile_Synthesis_of_Highly_Substituted_Dibenzopyranones/2880916
A new synthesis of dibenzopyranones <b>14</b> is reported via the DielsāAlder cycloaddition of 4-cyanocoumarins <b>12</b> with 1-silyloxydienes <b>10</b> to give the adducts <b>13</b> which are then converted into <b>14</b> in one step via treatment with base and loss of the cyano and silyloxy groups.