82296-08-0Relevant academic research and scientific papers
Studies on the Chemistry of 1,4-Oxazines. 18. Synthesis of Tricyclic 1,4-Benzoxazines via Nucleophilic Substitution of Activated Precursors
Bartsch, Herbert,Erker, Thomas,Neubauer, Gustav
, p. 205 - 207 (2007/10/02)
Starting from activated benzoxazines 1 and 2 new synthetic pathways to the tricyclic compounds 4, 9, 12 and 16 are described.Reaction of the hydrazides 17a,b with thionylchloride leads to the novel thiatriazolobenzoxazines 18a,b.
Synthesis and Reactions of Some Novel Imidazobenzoxazines and Related Systems
Danswan, Geoff W.,Hairsine, Peter W.,Rowlands, David A.,Taylor, John B.,Westwood, Robert
, p. 1049 - 1058 (2007/10/02)
A novel synthesis of the new 4H-imidazobenzoxazine system (2) has been carried out under two sets of conditions, leading to products with differing functionalities.The effect of substituents on the cyclization step has been investigated and the reactions of the functional groups of the new ring system have been studied.Derivatives of the related 4,5-dihydroimidazobenzoxazepine (3) have also been prepared.
