15451-14-6Relevant articles and documents
Three Ways Aliphatic Aldehydes React with Nonstabilized Azomethine Ylides
Buev, Evgeny M.,Gorbunova, Evgeniya V.,Moshkin, Vladimir S.,Sosnovskikh, Vyacheslav Y.
supporting information, p. 343 - 348 (2020/02/27)
Aliphatic aldehydes readily react with nonstabilized azomethine ylides in one of the three ways to give oxazolidines, pyrrolidines, or Mannich bases, depending on the structure of the starting compound and the reaction conditions. The use of N -(methoxymethyl)- N -[(trimethylsilyl)methyl]benzylamine in DMF provided 5-alkyloxazolidines in 40-97percent yields. On the other hand, three-component reactions of aliphatic aldehydes bearing one α-hydrogen with N -methyl(benzyl)glycine and formaldehyde gives Mannich bases in yields of 47-98percent. A similar reaction of aldehydes bearing branched alkyl groups and two hydrogen atoms at the α-position proceeds as a domino process that gives 3-alkyl-3-formylpyrrolidines in yields of 34-93percent.
SECONDARY AMINOSILANES
-
Paragraph 0238; 0239, (2013/11/05)
The present disclosure invention relates to novel secondary aminosilanes, a method for producing same, and the use thereof. The secondary aminosilanes can be produced from readily available reactants in a simple manner. The secondary aminosilanes are characterized for example by a low viscosity and are well suited for producing silane-functional polymers that have a low viscosity, fast curing, and good thermal stability.
Seven-Membered Rings by 1,5-Cycloadditions, VI. - 7-Aminoperhydro-1,4-oxazepines and -diazepines
Griengl, Herfried,Prischl, Gerhard,Bleikolm, Anton
, p. 1573 - 1582 (2007/10/02)
3-Alkyl-1,3-oxazolidines 2 react with enamines 1 in the presence of trifluoroacetic acid to give 7-dialkylaminoperhydro-1,4-oxazepines 3. 1,3-Dimethyl-1,3-imidazolidine (2d) reacts with 4-(2-methyl-1-propenyl)morpholine (1a) to give 1,4,6,6-tetramethyl-7-morpholino-2,3,4,5,6,7-hexahydro-1H-1,4-diazepine (3m).