1,721,072 research outputs found
ONE-POT SEQUENTIAL 1,3-DIPOLAR CYCLOADDITION/PD-CATALYZED CYCLIZATION AS A ROUTE TO NITROGENATED POLYHETEROCYCLIC SYSTEMS
No full textPyrazin-2(1H)-ones from 3,4-disubstituted 4-aminoisoxazol-5(4H)-ones
No full textA new synthesis for 3,5,6-trisubstituted pyrazin-2(1H)-ones from 3,4-disubstituted 4-(phenyloxalylamino)- and 4-(alkyloxalylamino)-isoxazol-5(4H)-ones is reported
A new entry to indolo[2,3-a]carbazoles
No full textThe synthesis of the indolo[2,3-a]carbazole ring is described starting from 3-chloromethylene-1,3-dihydro-indol-2-one 5 and 3-(cyano-ethoxycarbonyl-methyl)-indole-1-carboxylic acid ethyl ester 4
A new synthesis of 3-vinylindoles
No full textA new synthesis of substituted 3-vinylindoles from 3-[(1-hydroxy-2-substituted)ethylidene]indol-2(3H)-ones is reported
Synthesis of 3-alkyl-3-bromo-1-ethoxycarbonyl-1,3-dihydro-2H-indol-2-ones
No full text3-Alkyl-1,3-dihydro-2H-indol-2-ones 1 are converted to the coresponding 2-ethoxycarbonyloxy derivatives 2 by reaction with ethyl chloroformate in the presence of triethylamine. Bromination of 2 affords the title compounds in 73-93% yield
New indole derivatives. Synthesis of 3-acyl-1-carbethoxy-2-trifluoromethanesulfonylindoles and of substituted 2-vinylindoles
No full text3-Acyl-1-carbethoxy-2-trifluoromethanesulfonylindoles 6 and 3-acyl-2-vinylindoles 7 are synthesized from 3-[(1-chloro)alkylidene]indol-2(3H)-ones 2 via 1-carbethoxy-3-[(1-dimethylamino)alkylidene]indol-2(3H)-ones 4
- …
