Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Gy. Simig"'
Autor:
Manfred Schlosser, Gy. Simig
Publikováno v:
ChemInform. 26
Several new 6-methoxy-7,8-methylenedioxyisoquinolines were synthesized via Pomeranz-Fritsch synthesis starting from 4-methoxy-2,3-methylenedioxybenzaldehyde. [on SciFinder (R)]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4832bb8bd086aa1b3298c88558e93599
https://doi.org/10.1002/chin.199513186
https://doi.org/10.1002/chin.199513186
Autor:
H. C. Van Der Plas, Gy. Simig
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 95:125-126
The amination of phenyl- 1,3,5-triazine with potassium [15N]amide in [15N]ammonia has been investigated at −33°. It was observed that (i) a Chichibabin amination occurs at a very low rate, (ii) the amination occurs partly according to an SN(ANRORC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5490182e48d4c1cab464f433008e2ec0
https://doi.org/10.1002/recl.19760950512
https://doi.org/10.1002/recl.19760950512
Publikováno v:
Organic Mass Spectrometry. 10:390-395
The mass spectra and main fragmentation pathways are presented for thirteen 1- and 3-substituted 5,5-diphenylglycocyamidine and -hydantoin derivatives. The principal decomposition routes of these compounds are also of diagnostic value for ascertainin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21665d90aa6a1f988d100af1664e1d65
https://doi.org/10.1002/oms.1210100510
https://doi.org/10.1002/oms.1210100510
Publikováno v:
Tetrahedron. 31:1195-1200
N-Cyanomanines react with aziridinone 1 to yield the amides 2 . Base catalysed ring closure of the latter furnished the glycocyamidines 3 . Acid catalysed de-t-butylation, and deimination combined with de-t-butylation of the compounds 3 leads to 1-su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68850e90397ccdbc495747eeb61b6f7b
https://doi.org/10.1016/0040-4020(75)85056-3
https://doi.org/10.1016/0040-4020(75)85056-3
Autor:
Gy. Simig, K. Lempert
Publikováno v:
Tetrahedron. 31:983-986
Three types of products are formed in the reactions of α-chloro-α,α-diphenylacetamides (1a–c with potassium N-cyanoanilide: cine substitution products of type 2 as the main products, and two types of normal products (4a and b, and 3, 6 and 7a, r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cbe193b1cf6a1be59259e27e7f1eb8b
https://doi.org/10.1016/0040-4020(75)80113-x
https://doi.org/10.1016/0040-4020(75)80113-x
Publikováno v:
Tetrahedron. 32:57-64
A method, based on the reaction of 1-(2-aminoaryl)-2-iminoimidazolidines 8 with phosgen, 1,1′-carbonydiimidazole and thiophosgene, carbon disulfide and 1,1′-thiocarbonyldiimidazole, respectively, has been devised for the synthesis of the title co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5507b37dacf10dddff281895c408944
https://doi.org/10.1016/0040-4020(76)80021-x
https://doi.org/10.1016/0040-4020(76)80021-x
Publikováno v:
Tetrahedron Letters. 18:1151-1154
Bei der Behandlung der a,a-Diaryl-a-halogen-N,N-dimethylacetamide (I) mit einem Uberschus an Natriummethylat werden neben den normalen Substitutionsprodukten durch Halogenaustausch am α-C-Atom zusatzlich anomale Enthalogenierungsprodukte sowie Kemsu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::629273e25a2340fc8a83fd1e2d2c75f2
https://doi.org/10.1016/s0040-4039(01)92856-4
https://doi.org/10.1016/s0040-4039(01)92856-4
Publikováno v:
Tetrahedron Letters. 16:93-96
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dee746577bee77f99b610748e70da6e8
https://doi.org/10.1016/s0040-4039(00)72478-6
https://doi.org/10.1016/s0040-4039(00)72478-6
Publikováno v:
Tetrahedron. 34:2371-2375
Treatment of 2-bromo-N,N-dimethyl-2,2-diphenylacetamide 1 with sodium methoxide in 2,2-dimethoxypropane furnishes mixtures of the reduced product 2 and the dimer 5 . Crossing experiments have shown that 2 is not a precursor of 5 , supporting thereby
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2331d7a8adc5f2ce218a9dac586f4758
https://doi.org/10.1016/0040-4020(78)89053-x
https://doi.org/10.1016/0040-4020(78)89053-x
Publikováno v:
Tetrahedron. 32:839-842
Methods have been developed for the synthesis of 2-amino-1-(2-aminoethyl)-benzimidazoles 10 . By ring closures with the aid of suitable C 1 -components, derivatives 11a–c, 13–15 of the novel [1,3,5]triazepino[1,2- a ] benzimidazole ring system ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::917736ed30d07ee56bab477d2561a2f1
https://doi.org/10.1016/0040-4020(76)80010-5
https://doi.org/10.1016/0040-4020(76)80010-5