Synthesis of Carbazoles by a Diverted Bischler–Napieralski Cascade Reaction
作者:Matteo Faltracco、Said Ortega-Rosales、Elwin Janssen、Răzvan C. Cioc、Christophe M. L. Vande Velde、Eelco Ruijter
DOI:10.1021/acs.orglett.1c00785
日期:2021.4.16
An unforeseen twist in a seemingly trivial Bischler–Napieralskireaction led to the selective formation of an unexpected carbazole product. The reaction proved to be general, providing access to a range of diversely substituted carbazoles from readily available substrates. Judicious variation of substituents revealed a complex cascade mechanism comprising no less than 10 elementary steps, that could
Benzyl esters and thiolesters of 4-aryl-3-butenoic acids, intermediates therefor, synthesis thereof, and the use of said esters and thiolesters for the control of pests.
Esters and thiolesters of .alpha.-substituted unsaturated acids, intermediates therefor, synthesis thereof, and the use of said esters and thiolesters and compositions thereof for the control of pests.
Substituted amides of 3-methyl-4-phenyl-3-butenoic acid, with a high
申请人:Istituto Biochimico Italiano di Loredana Lorenzini S.a.s.
公开号:US04053635A1
公开(公告)日:1977-10-11
Amides of 3-methyl-4-phenyl-3-butenoic acid of the formula ##STR1## wherein R represents hydrogen, alkyl, hydroxyalkyl or cycloalkyl and R' represents alkyl, hydroxyalkyl or cycloalkyl, or R and R' together represent --CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CH.sub.2 --, which are obtained by reacting the chloride of 3-methyl-4-phenyl-3-butenoic acid and amines of formula ##STR2## wherein R and R' have the above indicated meanings, having a high hypolipemizing activity.