Reactive intermediates. Part IV. The amination of naphtho[1,8-de]-triazine
作者:C. W. Rees、R. C. Storr
DOI:10.1039/j39690000756
日期:——
Amination of naphtho[1,8-de]triazine with aqueous hydroxylamine-O-sulphonic acid gives 1-aminonaphtho-[1,8-de]triazine and 1-amino-8-azidonaphthalene. Amination with ethereal chloramine gives 1- and 2-aminonaphthotriazines and the latter was shown to rearrange to the amino-azide under the conditions of the hydroxylamine-O-sulphonic acid amination. Both 1 - and 2-aminotriazines are rearranged smoothly
用羟胺-O-磺酸水溶液胺化萘[1,8- de ]三嗪,得到1-氨基萘-[1,8- de ]三嗪和1-氨基-8-叠氮基萘。用醚化氯胺胺化得到1-和2-氨基萘三嗪,并且显示后者在羟胺-O-磺酸胺化的条件下重排成氨基叠氮化物。1-和3-氨基三嗪均被酸平滑地重排至氨基叠氮化物。将这些三嗪的稳定性与相关三唑的稳定性进行了比较,并提出了其重排的机理。
1,8-Dehydronaphthalene. Part II. Generation of 1,8-dehydronaphthalene from 1-aminonaphtho[1,8-de]triazine
作者:R. W. Hoffmann、G. Guhn、M. Preiss、B. Dittrich
DOI:10.1039/j39690000769
日期:——
Amination of naphtho[1,8-de]triazine with hydroxylamine-O-sulphonate afforded 1-amino-8-azido-1-naphthalene and 1-aminonaphtho[1,8-de]triazine. Oxidation of the latter with lead tetra-acetate liberated nitrogen and gave 1,8-dehydronaphthalene which could be trapped by cycloaddition to dimethyl acetylenedicarboxylate or to N-phenylmaleimide.
用羟胺-O-磺酸酯化萘并[1,8- de ]三嗪,得到1-氨基-8-叠氮基-1-萘和1-氨基萘并[1,8- de ]三嗪。后者用四乙酸铅氧化可释放出氮,得到1,8-脱氢萘,可通过环加成反应将其捕获到乙炔二羧酸二甲酯或N-苯基马来酰亚胺中。
Some observations of various 1,8 naphthoquino-dimethane biradicals by electron spin resonance spectroscopy
作者:Matthew S. Platz、Glen Carrol、Frank Pierrat、Josè Zayas、Sheila Auster
DOI:10.1016/0040-4020(82)80158-0
日期:1982.1
Photolysis of 8-methyl-1-naphthyldiazomethane at 4 K gives the triplet ESR spectrum of 1,8-naphthoquinodimethane but not that of 8-methyl-1-naphthylcarbene. Photolysis of either 8-methyl-1-azido-naphthalene or 8-amino-1-azidonaththalene does produce the triplet biradical spectra of 8-imino-1-naphthoquinomethane and 1,8-diiminonaphthoquinodimethane, in addition to the triplet nitrene spectra of 8-m
Dry photoimaging processes and compositions employing photosensitive coatings of volatile peri-substituted aromatic azido compounds in a permeable film-forming plastic are disclosed.