Synthesis of N-(Substituted aryl/cyclohexyl)-N'-[5-bromo-5-nitro-2-oxido-1,3,2-dioxaphosphorinane-2-yl]ureas
✍ Scribed by P. Vasu Govardhana Reddy; Y. Hari Babu; C. Suresh Reddy
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 2003
- Tongue
- English
- Weight
- 27 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0022-152X
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✦ Synopsis
Abstract
N‐(Substituted aryl/cyclohexyl)‐N'‐[5‐bromo‐5‐nitro‐2‐oxido‐1,3,2‐dioxaphosphorinane‐2‐yl]ureas RR'P(O)NHC(O)NHR' (5) were synthesized by the reactions of 2‐bromo‐2‐nitro‐1,3‐propanediol (4) with chlorides of aryl/cyclohexyl carbamidophosphoric acids (3) in the presence of triethylamine at room temperature. Their ir, ^1^H, ^13^C and ^31^P nmr spectral data are discussed.
📜 SIMILAR VOLUMES
## Abstract A study on the synthesis of the novel __N__‐(cyclic phosphonate)‐substituted phosphoramidothioates, __i.e., O__,__O__‐diethyl __N__‐[(__trans__‐4‐aryl‐5,5‐dimethyl‐2‐oxido‐2__λ__^5^‐1,3,2‐dioxaphosphorinan‐2‐yl)methyl]phosphoramidothioates **4a**–**l**, from __O__,__O__‐diethyl phosphor
## Abstract __N__‐Substituted N′‐[6‐methyl‐2‐oxido‐1,3,2‐dioxaphosphinino(5,4,‐b)pyridine‐2‐yl]ureas have been accomplished by condensation of equimolar quantities of chlorides of various carbamidophosphoric acids (**__3__**) with 3‐hydroxyl‐6‐methyl‐2‐pyridinemethanol (lutidine diol) (**__4__**) i