Reaction products of primary β-hydroxy-amines with carbonyl compounds. III. Ultraviolet spectra

Autor: S. Pinchas, Yehuda Hirshberg, Emanuel Zimkin, Ernst D. Bergmann

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 71:192-199

For a number of products of the condensation between ethanolamine or 2-amino-3-methyl-butanol-3 and aromatic aldehydes and ketones. the ultraviolet spectrum has been measured. The observations have been used to distinguish between oxazolidine and Sch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b409559e6b43faae2e932169d1e20bcf
https://doi.org/10.1002/recl.19520710210

PHOTOCHROMISM IN SPIROPYRANS. PART IV.1 EVIDENCE FOR THE EXISTENCE OF SEVERAL FORMS OF THE COLORED MODIFICATION

Autor: Ernst Fischer, Yehuda Hirshberg, Rahel Heiligman-Rim

Publikováno v: The Journal of Physical Chemistry. 66:2465-2470

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::385c2a5eb164cfc23539eb53fafd4cec
https://doi.org/10.1021/j100818a035

PHOTOCHROMISM IN SPIROPYRANS. PART V.1 ON THE MECHANISM OF PHOTOTRANSFORMATION

Autor: Rahel Heiligman-Rim, Yehuda Hirshberg, Ernst Fischer

Publikováno v: The Journal of Physical Chemistry. 66:2470-2477

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::defe4be0a0b3335893bf79e71726d280
https://doi.org/10.1021/j100818a036

Formation of Reversible Colored Modifications at Low Temperatures by Bombardment with Electrons

Autor: Yehuda Hirshberg

Publikováno v: Hirshberg, Yehuda.(1957). FORMATION OF REVERSIBLE COLORED MODIFICATIONS AT LOW TEMPERATURES BY BOMBARDMENT WITH ELECTRONS. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/6p71j7bk

The effects of electron irradiation at low temperatures upon a number of bianthrone and spiropyran compounds have been examined. The colors induced have been found to be very similar in properties to those obtained by ultraviolet irradiation of the s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a97fb9b9c388c8d57079cb30451494e4
https://doi.org/10.1063/1.1743827

Photochemical Interaction between Ketones and Alcohols

Autor: Yehuda Hirshberg, Ernst D. Bergmann, Ch. Weizmann

Publikováno v: Journal of the American Chemical Society. 60:1530-1533

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::61697cd6cdff3fb810be02ddb984410a
https://doi.org/10.1021/ja01274a003