## Abstract New polyesterβsulfur compositions with increased tensile strength were obtained by heating polyesters derived from diphenylmethaneβ4,4β²βdi(methylthioacetic acid) and ethylene or diethylene glycol with elemental sulfur. The hardness, tensile, thermomechanical, as well as some electrical
The reaction of schoenberg's reagent with elemental sulfur
β Scribed by William C. Neely; H.B. Williams
- Publisher
- Elsevier Science
- Year
- 1961
- Tongue
- English
- Weight
- 283 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0003-2670
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π SIMILAR VOLUMES
The reaction of w-keto amides with Lawesson's reagent (LR: 2,4-bis(4-methoxyphenyl)-l,3,2,4-dithiadiphosphetane 2,4-disulfide) is described. Treatment of 3-keto amides (2-acylacetamides) I with LR gave the corresponding 3-keto thioamides 2, along with 1,2-dithiole-3-thiones 3. Treatment of 4-keto an
Metal and temperature effects on thio-Wittig reactions have been studied. Stabilized phosphorus ylides, such as carbomethoxymethylenetriphenylphosphorane, reacted with sulfur to afford dimethyl maleate and dimethyl fumarate in a 1 : 4 ratio. As in the case of conventional Wittig reactions with semis