820-25-7Relevant articles and documents
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Demole,E.,Enggist,P.
, p. 933 - 943 (1969)
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New volatile sulfur-containing constituents in a simultaneous distillation-extraction extract of red bell peppers (Capsicum annuum)
Naef, Regula,Velluz, Alain,Jaquier, Alain
experimental part, p. 517 - 527 (2009/04/10)
An extract of red bell peppers (Capsicum annuum) was prepared by simultaneous distillation-extraction (SDE, Likens-Nickerson). In addition to the already known (3E)-hepten-2-one (1), the unsaturated C9-ketones 1-nonen-4-one (2), (2E)-2-nonen-4-one (3), and (2E,5E)-2,5-nonadien-4-one (4), 2-methoxy-3-isobutylpyrazine (5), and heptane-2-thiol (6), we identified 19 new thiols (the aliphatic saturated and unsaturated thiols 14-16, and 22-27, the mercapto-ketones 12 and 13, the mercapto-alcohols 17, 18, and 30, the dithiols 19 and 28, the methylthio-thiols 20 and 21, and the thiophene-thiol 31) and the two new dithiolanes 10 and 29. All of them are structurally related to the unsaturated C7-and C9-ketones 1-4. The free thiols were enriched using Affi-Gel 501 (p-aminophenyl-mercuric acetate grafted on an agarose gel). The new compounds were confirmed by syntheses and were organoleptically evaluated.
Synthesis with sulfones, Part XLIII. Preparation of γ-functionalized vinyl sulfones by nucleophilic substitution of allylidene disulfones; stereospecific reduction of 3-hydroxy-(E)-1-propenyl sulfones to (Z)-allylic alcohols
Cuvigny, T.,Penhoat, C. Herve du,Julia, M.
, p. 409 - 421 (2007/10/02)
The substitution of a sulfonyl moiety ao allylidene disulfones by various nucleophiles (PhSNa, PhSO2Na, H2O and R2NH) leads to γ-functionalized (E)-vinyl sulfones.The stereospecific reduction of 3-hydroxy-(E)-1-propenyl sulfones affords (Z)-allylic alcoho
