Zobrazeno 1 - 10
of 475
pro vyhledávání: '"REES, C. W."'
Publikováno v:
The Journal of Parasitology, 1957 Apr 01. 43(2), 143-152.
Externí odkaz:
https://www.jstor.org/stable/3274639
Autor:
Rees, C. W.
Publikováno v:
Science, 1927 Jul . 66(1699), 89-91.
Externí odkaz:
https://www.jstor.org/stable/1651553
Publikováno v:
Journal of the Chemical Society.Perkin Transactions 1
J Chem Soc Perkin Trans 1
J Chem Soc Perkin Trans 1
6-Chloro-1,2,3-benzodithiazolium chlorides 1 (Herz salts) react with malononitrile to afford the highly coloured ylidenes 2 in low to moderate yields. The reaction is general but complex and in the case of the 6-chloro-4-methoxy-1,2,3-benzodithiazoli
Publikováno v:
Journal of the Chemical Society.Perkin Transactions 1
J Chem Soc Perkin Trans 1
J Chem Soc Perkin Trans 1
Dibromomalononitrile 3a reacts with 4-chloro-1,2,3-dithiazole-5-thione 9 and monobromomalononitrile 3c reacts with 4,5-dichloro-1,2,3-dithiazolium chloride 4 (Appel salt) to give 4-chloro-5H-1,2,3-dithiazole-5-ylidenemalononitrile 1 in 76 and 73% yie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a4d8000bdf7f0da25f103925994b50b
http://gnosis.library.ucy.ac.cy/handle/7/55329
http://gnosis.library.ucy.ac.cy/handle/7/55329
Publikováno v:
Chemical Communications
Chem.Commun.
Chem.Commun.
The chloride ion catalysed addition of SCl2 to TCNE gives the dicyanomethylene-1,2,6-thiadiazine 3 as major product together with two unexpected minor products, pyrimidine 4 and pyrroloimidazothiadiazine 5, whose X-ray crystal structures are describe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______4485::c589f6610690e3db486b930f93b1bc6c
http://gnosis.library.ucy.ac.cy/handle/7/55738
http://gnosis.library.ucy.ac.cy/handle/7/55738
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1
J.Chem.Soc.Perkin Trans.1
J.Chem.Soc.Perkin Trans.1
The chlorine atoms in 3,5-dichloro-4-dicyanomethylene-1,2,6-thiadiazine 1 are readily displaced by thiophenols in the presence of Hünig's base, the first at -78 °C and the second at 20 °C to give the orange mono- and bis-arylthio derivatives in hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05e5aad689d0901e3751bceffcf0a419
http://gnosis.library.ucy.ac.cy/handle/7/55735
http://gnosis.library.ucy.ac.cy/handle/7/55735
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1
J.Chem.Soc.Perkin Trans.1
J.Chem.Soc.Perkin Trans.1
3,5-Dichloro-4H-1,2,6-thiadiazin-4-one 1 condenses rapidly at room temperature with 1,2-diaminobenzene, 2-aminothiophenol and sodium 2-aminophenoxide to give, respectively, the purple thiadiazinoquinoxaline 4a, red thiadiazinobenzothiazine 4b and ora
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e61f61b680c73fcf18b492ebad92ae3
http://gnosis.library.ucy.ac.cy/handle/7/55734
http://gnosis.library.ucy.ac.cy/handle/7/55734
Publikováno v:
Journal of the Chemical Society-Perkin Transactions 1
Treatment of the readily available dicyanomethylenedithiazole 1 with excess of morpholine or triphenylphosphine gives the 3-azacyclopentadienethione (3H-pyrrole-3-thione) 5 and the 3-azacyclopentadienylphosphorane (3H-pyrrol-3-ylidenephosphorane) 16
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______4485::e974d5a9b980606143fd8fac00b127a9
http://gnosis.library.ucy.ac.cy/handle/7/55739
http://gnosis.library.ucy.ac.cy/handle/7/55739
Publikováno v:
Journal of the Chemical Society-Perkin Transactions 1
In the synthesis of dicyanomethylene-1,2,3-dithiazole 2 from dithiazolethione 1 and tetracyanoethylene oxide (TCNEO), formation of the thione-oxide (sulfine) 3 becomes competitive under mild conditions, in the first transfer of oxygen from TCNEO to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______4485::81374afc77629b6d10b3c041bf670647
http://gnosis.library.ucy.ac.cy/handle/7/55737
http://gnosis.library.ucy.ac.cy/handle/7/55737
Publikováno v:
Journal of the Chemical Society-Perkin Transactions 1
4,5-Dichloro-1,2,3-dithiazolium chloride 1 condenses with active methylene compounds, such as malononitrile, barbituric acid and Meldrum's acid, to give the dithiazol-5-ylidene derivatives, such as 3,4 and 5, in modest yields. Better yields are obtai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______4485::60ae80f381b98ec010b53e4847f50af8
http://gnosis.library.ucy.ac.cy/handle/7/55471
http://gnosis.library.ucy.ac.cy/handle/7/55471