Sulfolane

Folyphosphoric acid trimethylsilyl ester (PPSE)[1] can be used in sulfolane, CH,Cl2 or nitromethane. It is similar to polyphosphoric acid but the overall conditions arc milder and the work-up more convenient. PPSE has been used in the cydization of ris-arylhydrazones of cyclohexane-l,2-diones to give indolo[2,3-a]carbazole analogues[2],... [Pg.59]

A mixture of methanesulfonic acid and P Oj used either neat or diluted with sulfolane or CH2CI2 is a strongly acidic system. It has been used to control the rcgiosclcctivity in cydization of unsymmetrical ketones. Use of the neal reagent favours reaction into the less substituted branch whereas diluted solutions favour the more substituted branch[3]. [Pg.59]

See also in sourсe #XX -- [ Pg.171 ]

See also in sourсe #XX -- [ Pg.17 ]

See also in sourсe #XX -- [ Pg.29 ]

See also in sourсe #XX -- [ Pg.643 , Pg.644 ]

See also in sourсe #XX -- [ Pg.5 , Pg.28 ]

See also in sourсe #XX -- [ Pg.373 ]

See also in sourсe #XX -- [ Pg.446 ]

See also in sourсe #XX -- [ Pg.123 ]

See also in sourсe #XX -- [ Pg.715 ]

See also in sourсe #XX -- [ Pg.183 ]

See also in sourсe #XX -- [ Pg.256 ]

See also in sourсe #XX -- [ Pg.500 ]

See also in sourсe #XX -- [ Pg.428 , Pg.429 ]

See also in sourсe #XX -- [ Pg.139 , Pg.149 , Pg.159 ]

See also in sourсe #XX -- [ Pg.82 ]

See also in sourсe #XX -- [ Pg.5 ]

See also in sourсe #XX -- [ Pg.5 ]

See also in sourсe #XX -- [ Pg.113 ]

See also in sourсe #XX -- [ Pg.1020 , Pg.1022 ]

See also in sourсe #XX -- [ Pg.82 , Pg.253 ]

See also in sourсe #XX -- [ Pg.78 ]

See also in sourсe #XX -- [ Pg.443 , Pg.444 , Pg.475 ]

See also in sourсe #XX -- [ Pg.256 ]

See also in sourсe #XX -- [ Pg.443 , Pg.444 , Pg.475 ]

See also in sourсe #XX -- [ Pg.347 , Pg.352 ]

See also in sourсe #XX -- [ Pg.55 , Pg.59 , Pg.62 ]

See also in sourсe #XX -- [ Pg.587 ]

See also in sourсe #XX -- [ Pg.94 ]

See also in sourсe #XX -- [ Pg.239 , Pg.243 , Pg.248 ]

See also in sourсe #XX -- [ Pg.420 , Pg.480 , Pg.537 ]

See also in sourсe #XX -- [ Pg.85 ]

See also in sourсe #XX -- [ Pg.407 , Pg.625 ]

See also in sourсe #XX -- [ Pg.123 ]

See also in sourсe #XX -- [ Pg.279 ]

See also in sourсe #XX -- [ Pg.22 , Pg.94 , Pg.146 , Pg.149 , Pg.164 , Pg.389 ]

See also in sourсe #XX -- [ Pg.111 ]

See also in sourсe #XX -- [ Pg.57 ]

See also in sourсe #XX -- [ Pg.460 ]

See also in sourсe #XX -- [ Pg.1133 ]

See also in sourсe #XX -- [ Pg.713 ]

See also in sourсe #XX -- [ Pg.65 ]

See also in sourсe #XX -- [ Pg.26 ]

See also in sourсe #XX -- [ Pg.42 ]

See also in sourсe #XX -- [ Pg.100 ]

See also in sourсe #XX -- [ Pg.453 ]

See also in sourсe #XX -- [ Pg.179 ]

See also in sourсe #XX -- [ Pg.1225 , Pg.1226 , Pg.1227 , Pg.1228 , Pg.1229 , Pg.1230 ]

See also in sourсe #XX -- [ Pg.288 ]

See also in sourсe #XX -- [ Pg.224 ]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...