128017-04-9Relevant academic research and scientific papers
Reactions of N-Benzyl- and N-Benzylidene-alkanolamines with Bromine: Formation of 1,3-Oxazolidines, 1,3-Oxazinanes, 4,5-Dihydro-1,3-oxazoles and 5,6-Dihydro-4H-1,3-oxazines
Goosen, Andre,McCleland, Cedric W.,Sipamla, Allworth M.
, p. 2221 - 2232 (2007/10/03)
N-Methylbenzylamines react with bromine in acetonitrile to form N-benzylidenemethylamines.Under similar conditions 2-benzylaminoethanols and 3-benzylaminopropan-1-ols afford 3-benzyl-2-phenyl-1,3-oxazolidines and 3-benzyl-2-phenyl-1,3-oxazinanes, respectively. 2-Benzylidineaminoethanols and 3-benzylideneaminopropan-1-ols likewise give 2-aryl-4,5-dihydro-1,3-oxazoles and 2-aryl-5,6-dihydro-4H-1,3-oxazines, respectively.When N-benzylidenemethylamine is treated with bromine in the presence of alcohols, benzaldehyde acetals are obtained.
Regioselective Reductive Ring Cleavage of 3-Benzyltetrahydro-1,3-oxazines to 3-Dialkylaminopropanols and of 3-Benzyl-3-methyltetrahydro-1,3-oxazinium Iodides to Alkyl 3-Dialkylaminopropyl Ethers
Alberola, Angel,Alvarez, M. Angeles,Andres, Celia,Gonzalez, Alfonso,Pedrosa, Rafael
, p. 153 - 156 (2007/10/02)
3-Benzyltetrahydro-1,3-oxazines and their methiodides are ring-cleaved upon reduction with lithium aluminum hydride to give 3-dialkylaminopropanols or alkyl 3-dialkylaminopropyl ethers, respectively, in good yields.The reducing agent regioselectively clea
