1H NMR chemical shifts and coupling constants of some 3-monosubstituted 2-methylpropenes

1H NMR chemical shifts and proton-proton coupling constants for some 3-substituted 2-methylpropenes [YCH2C(Me)CH2, Y = H, Cl, Br, I, OH, OMe, OEt, SH, SMe, SEt, NMe2 and NEt2] are reported. Resonances of the olefinic protons were assigned through lanthanide-induced shifts. Chemical shifts of the ole...

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Guardado en:
Detalles Bibliográficos
Publicado: 1997
Materias:
2-methylpropenes
1H chemical shifts
Allylic couplings
Substituent effects
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07491581_v35_n3_p147_Rittner
http://hdl.handle.net/20.500.12110/paper_07491581_v35_n3_p147_Rittner
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_07491581_v35_n3_p147_Rittner
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spelling paper:paper_07491581_v35_n3_p147_Rittner2023-06-08T15:45:32Z 1H NMR chemical shifts and coupling constants of some 3-monosubstituted 2-methylpropenes 2-methylpropenes 1H chemical shifts Allylic couplings Substituent effects 1H NMR chemical shifts and proton-proton coupling constants for some 3-substituted 2-methylpropenes [YCH2C(Me)CH2, Y = H, Cl, Br, I, OH, OMe, OEt, SH, SMe, SEt, NMe2 and NEt2] are reported. Resonances of the olefinic protons were assigned through lanthanide-induced shifts. Chemical shifts of the olefinic protons (HA and HB) showed a dependence on the substituent at C-3 of the allylic fragment. Long-range allylic coupling constants (4Jcisoid for HA and CH2 and HB and Me; 2Jtransoid for HB and CH2 and HA and Me) were determined by spectral expansion and simulation. © 1997 by John Wiley & Sons, Ltd. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07491581_v35_n3_p147_Rittner http://hdl.handle.net/20.500.12110/paper_07491581_v35_n3_p147_Rittner
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 2-methylpropenes
1H chemical shifts
Allylic couplings
Substituent effects
spellingShingle 2-methylpropenes
1H chemical shifts
Allylic couplings
Substituent effects
1H NMR chemical shifts and coupling constants of some 3-monosubstituted 2-methylpropenes
topic_facet 2-methylpropenes
1H chemical shifts
Allylic couplings
Substituent effects
description 1H NMR chemical shifts and proton-proton coupling constants for some 3-substituted 2-methylpropenes [YCH2C(Me)CH2, Y = H, Cl, Br, I, OH, OMe, OEt, SH, SMe, SEt, NMe2 and NEt2] are reported. Resonances of the olefinic protons were assigned through lanthanide-induced shifts. Chemical shifts of the olefinic protons (HA and HB) showed a dependence on the substituent at C-3 of the allylic fragment. Long-range allylic coupling constants (4Jcisoid for HA and CH2 and HB and Me; 2Jtransoid for HB and CH2 and HA and Me) were determined by spectral expansion and simulation. © 1997 by John Wiley & Sons, Ltd.
title 1H NMR chemical shifts and coupling constants of some 3-monosubstituted 2-methylpropenes
title_short 1H NMR chemical shifts and coupling constants of some 3-monosubstituted 2-methylpropenes
title_full 1H NMR chemical shifts and coupling constants of some 3-monosubstituted 2-methylpropenes
title_fullStr 1H NMR chemical shifts and coupling constants of some 3-monosubstituted 2-methylpropenes
title_full_unstemmed 1H NMR chemical shifts and coupling constants of some 3-monosubstituted 2-methylpropenes
title_sort 1h nmr chemical shifts and coupling constants of some 3-monosubstituted 2-methylpropenes
publishDate 1997
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07491581_v35_n3_p147_Rittner
http://hdl.handle.net/20.500.12110/paper_07491581_v35_n3_p147_Rittner
_version_ 1768543756821200896

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