Výsledky vyhledávání - "María I. García Trimiño"

Reaction ofN,N'-dimethyl-2-nitroethene-1, 1-diamine with α,ß-unsaturated acyl isothiocyanates: Preparation of 1,3-thiazin-4-one and 4-nitro-1,2-thiazol-5(2H)-imine derivatives

Autor: Arístides Rosado Pérez, Dally Moya Argilagos, María I. García Trimiño, Heinz Heimgartner, Anthony Linden, Arturo Macías Hermán Vélez Cabrera Castro

Publikováno v: Helvetica Chimica Acta. 81:718-728

The reaction of N,N-dimethyl-2-nitroethene-1,1-diamine (8) with alpha,beta-unsaturated acyl isothiocyanates 9 affords 3,3-diamino-2-nitroacrylthioamides 10 (Scheme 2) in moderate-to-good yields. Cyclization of 10 under acidic conditions gives 1,3-thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b8297a22402e947eaf2a375844f6a0d
https://doi.org/10.1002/hlca.19980810321

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An Unexpected Isomerization ofN-Aryl-3-amino-4-nitroisothiazol-5(2H)-imines to 2-(Benzothiazol-2-yl)-2-nitroethene-l, l-diamines

Autor: Arturo Macías Cabrera, Dally Moya Argilagos, María I. García Trimiño, Heinz Heimgartner, Anthony Linden

Publikováno v: Helvetica Chimica Acta. 80:273-292

The syntheses of several N-aryl-3-amino-4-nitroisothiazol-5(2H)-imines 12 from 3,3-diamino-2-nitrothioacrylamides 11 are reported (Scheme 3). In polar solvents, a spontaneous isomerization of some of the prepared isothiazol-5(2H)-imines 12 yielded be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d8316fdc42762fe60f07555a3870b8d3
https://doi.org/10.1002/hlca.19970800125

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3-(Acylamino)-3-amino-2-nitroacrylonitriles fromN-Acyl-S-methyl-3,3-diamino-2-nitroacrylthioimidates

Autor: Arturo Macías Cabrera, María I. García Trimiño, Heinz Heimgartner, Anthony Linden

Publikováno v: Helvetica Chimica Acta. 76:2817-2829

Reaction of N-acyl-3,3-diamino-2-nitroacrylthioamides 1 with MeI at room temperature leads to N-acyl-S-methyl-3,3-diamino-2-nitroacrylthioimidates 2 in moderate yields. The latter react with Hg(OAc)2 in DMF yielding 3-(acylamino)-3-amino-2-nitroacryl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::74235a9cb75398341f50a4cd5aa08076
https://doi.org/10.1002/hlca.19930760808

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