An efficient, continuous flow technique for the chemoselective synthesis of thioacetals
By optimizing a reagent's residence time within a packed-bed reactor, it is possible to overcome selectivity issues frequently encountered in stirred reaction vessels. This important feature is demonstrated for the chemoselective protection of 4-acetylben
Wiles, Charlotte,Watts, Paul,Haswell, Stephen J.
p. 7362 - 7365
(2008/03/13)
Silica gel-supported polyphosphoric acid (PPA/SiO2) as an efficient and reusable catalyst for conversion of carbonyl compounds into oxathioacetals and dithioacetals
A simple and efficient method for the conversion of carbonyl compounds to oxathioacetals and dithioacetals by using polyphosphoric acid supported on silica gel (PPA/SiO2) as an acid catalyst have been developed. PPA/SiO2 is easily re
Aoyama, Tadashi,Takido, Toshio,Kodomari, Mitsuo
p. 2307 - 2310
(2007/10/03)
Chemoselective Protection of Carbonyl Compounds as Dithioacetals Using Silica Gel Supported Aluminium Chloride
Silica gel supported aluminium chloride is shown to be a mild chemoselective catalyst for dithioacetalization of carbonyl compounds.
Tamami,Borujeny, K. Parvanak
p. 4253 - 4258
(2007/10/03)
Comparative radioprotective activity of various pentagonal compounds with two heteroatomes
Various heterocyclic compounds with two heteroatomes were synthesized and their potential radioprotective activity was tested. This study shows the interest of phenylthiazolidines derivatives in chemical radioprotection.
Robbe,Fernandez,Dubief,et al.
p. 235 - 243
(2007/10/02)
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