Spectroscopic study of stepwise gossypol sulfonylation with tosyl chloride in the presence of 4-methoxypyridine N-oxide and triethylamine
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2021.131155
Abstract: Abstract Sulfonylation of gossypol with stepwise increase of tosyl chloride content in the presence of 4-methoxypyridine N-oxide and triethylamine was carried out. The sequence of gossypol's hydroxyl groups tosylation was studied using HPLC, FT-IR and… read more here.
Keywords: methoxypyridine oxide; spectroscopy; triethylamine; tosyl chloride ... See more keywords
Facile removal of tosyl chloride from tosylates using cellulosic materials, e.g., filter paper
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2016.12.014
Abstract: Abstract Excess tosyl chloride used in the tosylation of alcohols is quickly and easily removed by reacting it with cellulosic materials, e.g., filter paper, and filtering. read more here.
Keywords: tosyl chloride; filter paper; cellulosic materials; materials filter ... See more keywords