Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Tarchini, Claudio"'
Publikováno v:
Helvetica Chimica Acta; 1979, Vol. 62 Issue 4, p1210-1216, 7p
Publikováno v:
Helvetica Chimica Acta; 1979, Vol. 62 Issue 2, p635-640, 6p
Autor:
Schlosser, Manfred, Tarchini, Claudio
Publikováno v:
Helvetica Chimica Acta; 1977, Vol. 60 Issue 8, p3060-3068, 9p
Autor:
Tarchini, Claudio.
Thèse No 302 sciences EPF Lausanne.
Andere Ausg. (Microfiches).
Andere Ausg. (Microfiches).
Externí odkaz:
http://library.epfl.ch/theses/?nr=302
Selective elimination of either one or two mols. of hydrogen halide from vicinal dihalides can be conveniently achieved by employing solid NaOH or KOH in the presence of solvents such as glycol di-Me ether or tetraethylene glycol di-Me ether. [on Sci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______185::1ae34bf9e9fb732e4064152d6e3aaa7e
https://infoscience.epfl.ch/record/81528
https://infoscience.epfl.ch/record/81528
Phosphorus ylides combine with carbonyl compds. to give zwitterionic betaines as detectable intermediates of the Wittig reaction, provided that the neg. charge on the O atom was substantially reduced by binding to a Li cation or resonance delocalizat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______185::cd60745de4596e530891759a979e1938
https://infoscience.epfl.ch/record/81514
https://infoscience.epfl.ch/record/81514
Rate ratios were obtained for the base-catalyzed 1,4-dehydrochlorination of (E)- and (Z)-Me3CCCl:C:C:CClCMe3 to give Me3CC.tplbond.CC.tplbond.CCMe3. In the KOMe/MeOH or KOCMe3/Me2SO systems the reactivity of both isomers was similar. With KOCMe3 in M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______185::63ad61b992d6eaf376044b70a690a2d8
https://infoscience.epfl.ch/record/81537
https://infoscience.epfl.ch/record/81537
Low temp. 31P NMR indicated that the reaction of Ph3P+C-RR1 (I, R = R1 = H, Me) with R2COR3 (R2 = R3 = H; R2 = Ph, R3 = H) under salt free conditions gave the corresponding oxaphosphetane (II); in the presence of Li salts, esp. in Et2O, Ph3P+CRR1CR2R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______185::6225b2128c843e5b8fc982e82320342a
https://infoscience.epfl.ch/record/81502
https://infoscience.epfl.ch/record/81502
Autor:
Schlosser, Manfred, Tarchini, Claudio
HCl and HBr were easily abstracted from secondary and tertiary alkyl halides by KOH in tetraglyme, but primary alkyl halides yielded approx. equal amts. of elimination and substitution products (alkenes and alcs. and/or ethers). However, the addn. of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______185::71eb3f0d459bd2ce02526c796ed0fb6d
https://infoscience.epfl.ch/record/81512
https://infoscience.epfl.ch/record/81512