- PROCESS FOR PRODUCING SUBSTITUTED AMINO ALCOHOLS
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The present invention relates to a process for producing a compound of the formula (I) comprising at least the process step: a) reacting a compound of the formula (II) with hydrogen and water in the presence of at least one homogeneous transition metal catalyst TMC 1.
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Page/Page column 27-28
(2020/06/01)
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- The Synthesis of Ketone-Derived Enamides by Elimination of HCN from Cyanoamides
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Treatment of easily available ketone-derived cyanoamides with NaOtBu leads to enamides in a simple, scalable, and inexpensive one-step operation in good yield. Enamides not stabilized by conjugation or by inclusion in a ring can also be prepared. An E1cB mechanism consistent with all results and observations, is proposed. The Z geometry of the product enamide is highly favoured, and the regioselectivity can be directed by one′s choice of protecting group.
- Coussanes, Guilhem,Gaus, Katharina,O'Sullivan, Anthony C.
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p. 4176 - 4188
(2016/08/26)
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- Synthesis of 4,4-Disubstituted 1,3-Thiazol-5(4H)-thiones
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An easy synthesis for the 1,3-thiazol-5(4H)-thiones 5, a class of heterocycles which have hitherto only been available with difficulty, is described.Reaction of 3-amino-2H-azirines 25 with thiocarboxylic acids at 0 deg yields monothiodiamides of type 20 (Scheme 6) which, on treatment with Lawesson reagent at 100 deg, undergo thiation and cyclization to give 5 in good yield.
- Jenny, Christjohannes,Heimgartner, Heinz
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p. 374 - 388
(2007/10/02)
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- Water-soluble amine-linked polymeric colorants
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Polymeric colorants comprising a hydrocarbon backbone and attached directly thereto through amine linkages, at least one water-solubilizing group and at least one optically chromophoric group are disclosed. In a preferred embodiment, the backbone is a saturated aliphatic hydrocarbon, the chromophore is an anthraquinone chromophore and the solubilizing group is a sulfonate or sulfamate residue.
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