84019-67-0Relevant articles and documents
Diene-Transmissive Diels-Alder Sequences with Benzynes
George, Josemon,Ward, Jas S.,Sherburn, Michael S.
supporting information, p. 7529 - 7533 (2019/10/02)
Diene-transmissive Diels-Alder (DTDA) sequences are extraordinarily powerful processes for the generation of fused bicyclic systems. Nonetheless, only stable dienophiles have previously been deployed. Herein we report DTDA sequences with a variety of substituted [3]dendralenes in the first study to deploy arynes as dienophiles. We demonstrate the one-flask generation of complex, aromatic-ring-containing, multicyclic systems of relevance to medicinal chemistry. These synthetic operations provide numerous successful examples of the otherwise challenging and rarely reported intermolecular Diels-Alder reaction of acyclic 1,3-butadienes with arynes, which is made possible due to the exalted reactivity of dendralenic dienes.
Solid-phase synthesis of quinol fatty alcohols, design of N/O-substituted quinol fatty alcohols and comparative activities on axonal growth
Hanbali, Mazen,Bagnard, Dominique,Luu, Bang
, p. 3917 - 3920 (2007/10/03)
Following the promising activity of Q2FA15 on axonal growth, two new series of N/O-substituted QFAs were synthesized, based on a SN2-type reaction. O-alkylated QFA bearing 14 carbon atoms on the side chain (n = 14) shows a very potent activity on axonal growth though lowered when compared to Q2FA15. While O-alkylation allows good retention of the biological activity, N-alkylation abolishes it nonetheless. A solid-phase-supported synthesis of Q2FA15 allowing the conception of new hybrid compounds is also described.
The oxidation of methoxy aromatic aldehydes with the system O2/iPrCHO/metal catalyst
Anoune,Anoune, Naoual,Lanteri,Longeray,Arnaud
, p. 6679 - 6680 (2007/10/02)
The oxidation of methoxy aromatic aldehydes by the system O2/iPrCHO/metal catalyst proceeds in high yields of formates, almost without the formation of important quantities of carboxylic acids.