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Molecules that we made: An essay on phosphorus chemistry

✍ Scribed by Alfred Schmidpeter

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
227 KB
Volume
10
Category
Article
ISSN
1042-7163

No coin nor oath required. For personal study only.

✦ Synopsis

In 1963, I was looking for a reagent that could convert a nitrosamine to a triazene, and I thought that a phosphazene in a Wittig-type reaction might do so. What I had intended never came true, but it caused me to look more closely at phosphorus chemistry. This look made me stay there for the rest of my days in research.

At that time, there was much discussion about the bonding in cyclophosphazenes. Irritatingly, we write the formula of a cyclotriphosphazene like that of an aromatic six-membered ring. Would fragments of these two ring types in praxi fit together? By different multistep syntheses [1-6], and by subsequent substitution reactions [7-9], we prepared many triazaphosphinines and triazadiphosphinines, such as 1. X-ray analyses [10,11] documented the clean merger of the two parts.

πŸ“œ SIMILAR VOLUMES

Shall we require four years of high scho
Shall we require four years of high school study?**This important communication is reprinted from the August Druggists’ Circular. p. 286. and is based on an inquiry address to Dr. Downing by the Druggists’ Circular when it became known that he had expressed his opposition to any change in the New York State Pharmam Law, which would make the completion of four years of high school study a prerequisite to pharmaceutical registration after July 1923. Th readers wiU understand thal & p n s d references arc made to the $wblicatMn from whuh the communication is repiutcd.
✍ Downing, Augustus S. πŸ“‚ Article πŸ“… 1921 πŸ› Elsevier βš– 242 KB πŸ‘ 2 views
Phytochemical terminology*1*Section on H
Phytochemical terminology*1*Section on Historical Pharmacy, A. Ph. A., Miami meeting, 1931.1An account of the development of phytochemical terminology would, no doubt, afford interesting reading. Those who are interested in this subject may read to advantage Runge’s attempt, made in 1820, and based on the dualistic chemistry of oxygen of that period. (Neueste Phytochemische Entdeckungen zur Begruendung einer wissenschaftlichen Phytochemie: Critische Bemerkungen zieber die jetzt herschende Namenmacherey in der Phytochemie, Chap. 4.) It reveals in striking manner the danger of forcing the growth of a language, even if the underlying principles are thought to be highly scientific. Should the present study develop far enough, the writer may, at some future date, attempt an account of this sort.
✍ Kremers, Edward ;Colaborers, πŸ“‚ Article πŸ“… 1932 πŸ› Elsevier βš– 474 KB πŸ‘ 2 views