96391-97-8Relevant academic research and scientific papers
Phase Transfer-Catalyzed Reactions between Polysulfide Anions and α,β-Unsaturated Carbonyl Compounds
Krein, Eitan B.,Aizenshtat, Zeev
, p. 6103 - 6108 (2007/10/02)
Ammonium polysulfide reacts with α,β-unsaturated ketones and aldehydes under PTC (phase transfer catalysis) conditions in a rather different manner than it does in homogeneous systems. 1,3-Diphenyl-2-propen-1-one (chalcone, 1) and 4-phenyl-3-buten-2-one (
Stabilizers for color photography recording materials
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, (2008/06/13)
Tetrahydrothiopyran compound of the formula I STR1 in which R1, R2, R3, R4, R5, R6, X and n are as defined in claim 1, are effective stabilizers for dyes and dye couplers in photographic layers. In particular, they provide protection from damage by light. They are preferably used in combination with a phenolic antioxidant.
Reactions of α,β-unsaturated ketones with hydrogen sulfide. γ-Keto sulfides or tetrahydrothiopyranols?
Mazza, Dario Del,Reinecke, Manfred G.
, p. 128 - 134 (2007/10/02)
The reaction of several α,β-unsaturated ketones with H2S under a variety of conditions has been investigated.With trans-1,2-dibenzoylethylene (1a) the tetrahydrothiopyranol 3a is the only product, not the corresponding open-chain sulfide 2a reported in th
