1972
DOI: 10.1021/jo00967a039
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Inductive effects on molecular ionization potentials. IV. Hydrogen sulfide and mercaptans

Abstract: Notestalline hydrochloride, mp 298-300°dec (lit.7 mp 300°d ec), M26d (EtOH) +207°.(+)-Nandigerine (10) from (+;-A7-Methylnandigerine (8).-The usual conditions afforded 10 (22% from 8), isolated as the crystalline hydrochloride, mp 242-245°dec (lit.7 mp 245-247°d ec), [<*] 26d (EtOH) +240°.( + )-Hernovine ( 11) from (+ )-A7-Methylhemovine ( 9).-The usual conditions afforded 11 (18% from 9) as crystals, mp 235-237°dec (lit.7 mp 236-240°d ec), [a] 26d (EtOH) +253°.Reaction of A7-Oxide 2 with Sulfur Dioxide in… Show more

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Cited by 21 publications
(9 citation statements)
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“…A number of early studies reported that the ionization energies of alkanethiols, 27 alkyl alcohols, 28 alkyl halides 29 and alkylamines 30 were linear functions of the inductive substituent constant I for the alkyl group as evaluated by Taft and Lewis. 31 More recent evaluations 4,7,9 of inductive substituent constants concluded that I for alkyl groups are essentially zero.…”
Section: Ionization and Appearance Energiesmentioning
confidence: 99%
“…A number of early studies reported that the ionization energies of alkanethiols, 27 alkyl alcohols, 28 alkyl halides 29 and alkylamines 30 were linear functions of the inductive substituent constant I for the alkyl group as evaluated by Taft and Lewis. 31 More recent evaluations 4,7,9 of inductive substituent constants concluded that I for alkyl groups are essentially zero.…”
Section: Ionization and Appearance Energiesmentioning
confidence: 99%
“…-2-пентен Циклогексен 1 -Этил-1-цикло-8,945 + 0,01 [ 12 ] цис-3-Гексен 8,954 + 0,005 [ 18 ] гексен 8,48 + 0,01 [ 17 (10) общее для них. Отрезок ординаты в этих уравнениях соответствует ПИ 2,3-диметил-2-бутена (СН 3 ) 3 С = С (СН 3 ) з, экспериментальное значение которого 8,30 + 0,02 [ 23 ].…”
Section: значение р* для водородаunclassified
“…Отрезок ординаты в этих уравнениях соответствует ПИ 2,3-диметил-2-бутена (СН 3 ) 3 С = С (СН 3 ) з, экспериментальное значение которого 8,30 + 0,02 [ 23 ]. Сопоставление экспериментальных данных ПИ циклопентенов и -гексенов [ l7 ] со значениями, вычисленными по уравнениям (8) (10), показывает их хорошее согласие между собой (табл. 5 и 6).…”
Section: значение р* для водородаunclassified
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