Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Vladimír Bobošík"'
Publikováno v:
Collection of Czechoslovak Chemical Communications. 61:268-275
Reaction of 2-substituted 5- and 6-aminobenzoxazoles 1 and 2 with diethyl ethoxymethylenemalonate afforded the corresponding diethyl 3-N-(5- and 6-benzoxazolyl)aminomethylenemalonates 3 and 4. Under conditions of the Gould-Jacobs reaction, the compou
Publikováno v:
Collection of Czechoslovak Chemical Communications. 61:371-380
Nucleophilic reaction of 5-amino- and 6-amino-2-substituted benzoxazoles 1 and 2 with 3-ethoxymethylene-2,4-pentanedione (3) gave compounds 5 and 6. Compounds 1 and 2 reacted with ethyl ethoxymethylene-3-oxobutanoate (4) under formation of compounds
Publikováno v:
Collection of Czechoslovak Chemical Communications. 60:709-714
The title compounds were prepareed by reaction of 1,2-dihydrofuro[2',3':4,5]pyrolo[1,2-d][1,2,4]-1-hydrazones by cyclization with triethyl orthoformiate or triethyl orthoacetate. All compounds were characterized by elemental analyses, UV and 1H NMR s
Publikováno v:
Collection of Czechoslovak Chemical Communications. 59:473-481
A number of methyl 2-substituted, 2,3-disubstituted-4H-furo[3,2-b]pyrrole-5-carboxylates (V - VII) and methyl 1H-benzo[b]furo[3,2-b]pyrrole-2-carboxylate (VIII) was prepared by the thermolysis of corresponding methyl 2-azido-3-(R1,R2-substituted-2-fu
Autor:
Alžbeta Krutošíková, Vladimír Bobošík
Publikováno v:
Collection of Czechoslovak Chemical Communications. 59:499-502
Protection of nitrogen atom of heterocyclic molecules, such as indole and pyrrole types, enables various reactions of these systems. N-Phenylsulfonyl derivatives, which have been widely used for this purpose, were prepared in the indole series by the
Publikováno v:
ChemInform. 23
Publikováno v:
ChemInform. 25
A number of methyl 2-substituted, 2,3-disubstituted-4 H -furo[3,2- b ]pyrrole-5-carboxylates ( V - VII ) and methyl 1 H -benzo[ b ]furo[3,2- b ]pyrrole-2-carboxylate ( VIII ) was prepared by the thermolysis of corresponding methyl 2-azido-3-(R 1 ,R 2
Autor:
Alžbeta Krutošíková, Vladimír Bobošík
Publikováno v:
ChemInform. 25
Protection of nitrogen atom of heterocyclic molecules, such as indole and pyrrole types, enables various reactions of these systems. N -Phenylsulfonyl derivatives, which have been widely used for this purpose, were prepared in the indole series by th
Publikováno v:
ChemInform. 26
The title compounds were prepareed by reaction of 1,2-dihydrofuro[2',3':4,5]pyrolo[1,2- d ][1,2,4]-1-hydrazones by cyclization with triethyl orthoformiate or triethyl orthoacetate. All compounds were characterized by elemental analyses, UV and 1 H NM
Publikováno v:
ChemInform. 27