Zobrazeno 1 - 10
of 28
pro vyhledávání: '"O. N. Lenkova"'
Publikováno v:
Russian Chemical Bulletin. 54:1728-1732
The E-isomers of α-chlorocinnamonitriles react with hydroxylamine to give a mixture of isomeric aminoisoxazoles, while the Z-isomers yield 3-aryl-2-chloroacrylamide oximes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89ca72d8d7ae429ba3a12ce36a0cb504
https://doi.org/10.1007/s11172-006-0029-1
https://doi.org/10.1007/s11172-006-0029-1
Autor:
Alexander L. Reznichenko, Valentine G. Nenajdenko, Elizabeth S. Balenkova, O. N. Lenkova, Alexey V. Shastin
Publikováno v:
Nenajdenko, V G, Reznichenko, A L, Lenkova, O N, Shastin, A V & Balenkova, E S 2005, ' A new synthetic approach to α-chlorocinnamaldehydes ', Synthesis, no. 4, pp. 605-609 . https://doi.org/10.1055/s-2004-837303
A new simple and efficient transformation of aromatic aldehydes into α-chlorocinnamaldehydes is described. Catalytic olefination reaction of hydrazones of aromatic aldehydes with 2-trichloromethyl-1,3-dioxolane gives ethylene acetals of target alken
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c45190e6f66ecdce2e6403473b8ffd3
https://doi.org/10.1055/s-2004-837303
https://doi.org/10.1055/s-2004-837303
Autor:
V. G. Nenaidenko, I. V. Golubinskii, Elisabeth S. Balenkova, Alexey V. Shastin, O. N. Lenkova
Publikováno v:
Russian Journal of Organic Chemistry. 42:238-240
A new procedure was developed for preparation of ethyl 3-amino-5-arylthiophene-2-carboxylates by the reaction of α-chlorocinnamonitriles and their analogs with ethyl mercaptoacetate for a wide range of substrates. The reaction products form in high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3dc289be94fd002f93710ef9fa6c11d
https://doi.org/10.1134/s1070428002120138
https://doi.org/10.1134/s1070428002120138
Autor:
I. V. Golubinskii, Elizabeth S. Balenkova, Alexey V. Shastin, O. N. Lenkova, Valentine G. Nenajdenko
Publikováno v:
Russian Chemical Bulletin. 54:252-254
Catalytic olefination of hydrazones of aromatic aldehydes with dibromoacetonitrile affords cinnamonitriles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e2bcd42b5a611fc6a95feec3e570113
https://doi.org/10.1007/s11172-005-0245-0
https://doi.org/10.1007/s11172-005-0245-0
Autor:
Elizabeth S. Balenkova, I. V. Golubinskii, V. G. Nenaidenko, O. N. Lenkova, Alexey V. Shastin
Publikováno v:
Russian Journal of Organic Chemistry. 40:1518-1520
A new efficient procedure has been proposed for the synthesis of 3-aryl-5-amino-1H-pyrazoles by reaction of α-chloro-β-arylacrylonitriles with hydrazine hydrate.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9595c01fa36c38bcbca1eeba58b1ab71
https://doi.org/10.1007/s11178-005-0053-x
https://doi.org/10.1007/s11178-005-0053-x
Publikováno v:
ChemInform. 37
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72cd8ee544edca4d79c9dfa690a1fc29
https://doi.org/10.1002/chin.200631114
https://doi.org/10.1002/chin.200631114
Autor:
Alexey V. Shastin, I. V. Golubinskii, O. N. Lenkova, Valentine G. Nenajdenko, Elisabeth S. Balenkova
Publikováno v:
ChemInform. 35
A novel method for the preparation of nitriles of α-chlorocinnamic acid from aldehydes and ketones was proposed. Transformation of carbonyl compounds into hydrazones followed by treatment of the reaction mixture with CCl3CN in the presence of copper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ff538dcf2c03a922c96f56e0d65bb0c
https://doi.org/10.1002/chin.200438096
https://doi.org/10.1002/chin.200438096
Publikováno v:
ChemInform. 35
A new simple and efficient transformation of carbonyl compounds to α-chlorocinnamates is described. Catalytic olefination reaction with ethyl trichloroacetate gives target alkenes in moderate to good yields. The reaction with aromatic aldehydes proc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f0a4ece0d0a80ecebaffb0829a53a68
https://doi.org/10.1002/chin.200428098
https://doi.org/10.1002/chin.200428098
Publikováno v:
Russian Chemical Bulletin; Jan2004, Vol. 53 Issue 1, p228-232, 5p
Autor:
O. N. Lenkova, I. V. Golubinskii, Alexey V. Shastin, Valentine G. Nenajdenko, Elizabeth S. Balenkova
Publikováno v:
Russian Chemical Bulletin. 54:255-256
A method for the synthesis of 2,4-diamino-6-arylpyrimidines from guanidine and α-chlorocinnamonitriles was developed. The starting nitriles can be easily prepared by catalytic olefination reaction.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba06b8a34c123e7d4d5f2842210094a3
https://doi.org/10.1007/s11172-005-0246-z
https://doi.org/10.1007/s11172-005-0246-z