کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5227841 1383617 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Regiochemical control of the ring-opening of aziridines by means of chelating processes. Part 4: Regioselectivity of the opening reactions with MeOH of 1-(benzyloxy)-2,3- and -3,4-N-(methoxycarbonyl)aziridoalkanes under condensed and gas-phase operating c
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Regiochemical control of the ring-opening of aziridines by means of chelating processes. Part 4: Regioselectivity of the opening reactions with MeOH of 1-(benzyloxy)-2,3- and -3,4-N-(methoxycarbonyl)aziridoalkanes under condensed and gas-phase operating c
چکیده انگلیسی

The regioselectivity of the addition reaction of MeOH both in the condensed phase (MeOH/H2SO4) and in the gas-phase (MeOH/D3+) was examined in a series of activated aziridines. The results indicate that gas-phase operating conditions are particularly favorable for the occurrence of D+-mediated chelated bidentate species, which influence the regioselectivity of the opening process. In the condensed phase, the chelating MeOH/LiClO4 protocol turned out to be decidedly less effective for regioselectivity and also in determining the composition of the reaction mixture.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 63, Issue 25, 18 June 2007, Pages 5501-5509
نویسندگان
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