5331-37-3Relevant articles and documents
Refractive index changes in polyacrylates bearing alkyl sulfur groups through the sulfur oxidation reaction
Jang, Jae Young,Do, Jung Yun
, p. 28 - 34 (2015/05/05)
Four polyacrylates with sulfur-containing side chains were prepared to examine the changes in refractive index (RI) induced by sulfur oxidation. Linear alkyl sulfides and alicyclic sulfides, such as 1,3-dithiolane and 1,4-dithiane, were introduced to impart large RIs to polyacrylates. Oxidation of the sulfur polymers by O3 and m-chloroperoxybenzoic acid led to the formation of the corresponding sulfoxide and sulfone polymers, respectively. Sulfur oxidation occurred completely, which was highlighted by the oxidized polymer exhibiting a refractive index comparable to a polymer that was synthesized using a sulfone monomer. The RI of the linear sulfur polymer increased and decreased due to the formation of sulfoxide and sulfone polymers, respectively. The Abbe number of the polymer with a linear sulfide side chain was 33.4, which increased to 48.7 after oxidation.
New Synthetic Routes to Unsymmetrical Diorganyl Sulfides
Deryagina,Korchevin,Papernaya
, p. 812 - 815 (2007/10/03)
A number of new methods for preparing unsymmetrical diorganyl sulfides was proposed. The methods rely on generation of thiolate anions from thiols, isothiuronium salts, and disulfides in the system hydrazine hydrate-KOH, followed by alkylation of the anions with alkyl halides. The hydrazine hydrate plays the role of medium and reducing agent, which prevents side thiol oxidation. The yield of sulfides reaches 98%. The reaction products are readily separated from the aqueous-hydrazine layer and purified by distillation. The yield of sulfides is reduced by a deficit of alkali and by increasing chain length and functionalization of alkyl groups in the alkyl halide. The reactivity of alkyl halides is independent of the nature of the halogen. From isothiuronium salts, 2-pyridyl sulfides were obtained in the highest yields.
A Comparison of the Oxidative Reactivities of Mustard (2,2'-Dichlorodiethyl Sulfide) and Bivalent Sulfides
Yang, Yu-Chu,Szafraniec, Linda L.,Beaudry, William T.
, p. 3664 - 3666 (2007/10/02)
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