3-(Acylamino)-3-amino-2-nitroacrylonitriles from N-Acyl-S-methyl-3,3-diamino-2-nitroacrylthioimidates
✍ Scribed by María I. García Trimiño; Anthony Linden; Heinz Heimgartner; Arturo Macías Cabrera
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- German
- Weight
- 781 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Reaction of N-acyI-3,3-diamino-2-nitroacrylthioamides 1 with Me1 at room temperature leads to N-acyl-Smethyl-3,3-diamino-2-nitroacrylthioimidates 2 in moderate yields. The latter react with Hg(OAc), in DMF yielding 3-(acylamino)-3-amino-2-nitroacrylonitriles 8. The structures of' Za and 8a were established by X-ray crystallography. ') A similar behavior of thioimidate esters toward Hg salts has been reported by Hall and Satchel1 [16]. *) Atomic coordinates, bond lengths, and bond angles have been deposited with the Cambridge Crystallographic Data Ceiztre, 12 Union Road, Cambridge CB2 IEZ, England.
📜 SIMILAR VOLUMES
The title compound, C 21 H 27 NO, crystallizes with two rather similar molecules in the asymmetric unit. Its molecular conformation is stabilized by an intramolecular O-HÁ Á ÁN hydrogen bond.
The title compound, C 8 H 10 N 3 S + ÁCl À ÁH 2 O, is extensively used as a spectrophotometric reagent for the determination of pharmaceutical compounds, vitamins and environmental samples.
The litle anlinomethyl (5) and amino (6) alcohols, which are of interest as intermediates in the synthesis of carbocyclic analogues of nucleosides, were prepared from (+)-camphoric acid via methyl (1S,3R)-3-carbamoyl-2.3.3-trimelhylcyclopel~tane earboxylale (8). Direct reduction of S gave 5 in 26% y