257 research outputs found
(Z)-2-[(2,4-Dimethylphenyl)imino]-1,3-thiazinan-4-one
In the title compound, C12H14N2OS, the 1,3-thiazinane ring displays a screw-boat conformation. In the crystal, pairs of centrosymmetrically related molecules are linked by pairs of N—H⋯O hydrogen bonds into dimers. C—H⋯π interactions occur between adjacent dimers
1′-Methyl-4′-phenyl-2′′-sulfanylidenedispiro[indoline-3,2′-pyrrolidine-3′,5′′-1,3-thiazolidine]-2,4′′-dione
The title compound, C20H17N3O2S2, crystallizes with two molecules in the asymmetric unit. The pyrrolodine rings have envelope conformations in both molecules, the N atoms deviating by 0.574 (3) and 0.612 (2) Å from the mean planes through the other ring atoms. The 1′-methyl and 4′-phenyl groups on the pyrrolidine rings are substituted in equatorial positions. In the crystal, molecules are linked into a three-dimensional network by N—H⋯O, N—H⋯N and C—H⋯O and N—H⋯π hydrogen bonds
The chemical reactivity of naphthols and their derivatives toward α-cyanocinnamonitriles and ethyl α-cyanocinnamates: A review of synthesis, reactions and applications of naphthopyrano
This review deals with synthesis and reactions of some naphthopyrano derivatives and their applications. The main purpose of this review is to present a survey of literatures on the reactivity of naphthols and their derivatives toward α-cyanocinnamonitrile or ethyl α-cyanocinnamate derivatives and the reactions of β-enaminonitriles and β-enaminoesters with different electrophiles followed by nucleophilic reagents. Some of these reactions have been applied successfully to the synthesis of biologically important compounds
Synthesis, reactions and applications of pyranotriazolopyrimidines
This review deals with synthesis, reactions and their applications of pyrano triazolo pyrimidines. The main purpose of this review is present a survey of literatures on the reactivity of amino imino derivatives and carboxylic acid derivatives. Some of these reactions have been applied successfully to the synthesis of biological important compounds
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