Spectroscopic study and analytical evaluation of N,N′- oxalylbis (2,4-Dihydroxybenzaldehyde hydrazone)
✍ Scribed by E. Pastor; F. de Pablos; J.L. Gómez Ariza
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 166 KB
- Volume
- 143
- Category
- Article
- ISSN
- 0022-2860
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N -[4-(4-n-Alkoxybenzoyloxy)-2-hydroxybenzylidene]chloroanilines [nAHmCl (n = 1-8; m = 2, -ortho; m = 3, -meta; m = 4, -para)] were newly synthesized. Some of them exhibited a photochromic color state on ultraviolet irradiation. In 1AH2Cl, the fresh solid species as prepared by crystallization from
## Abstract EI induced mass spectral fragmentations of twelve new hydrazones of 2‐(3‐ and 4‐)‐pyridinecarboxaldehydes and hydrazides of (__E__)‐stilbenyloxyacetic acid as well as __N__‐(__E__)‐stilbenyloxyalkylcarbonyl substituted amino acids were investigated. Fragmentations pathways are proposed