79302-18-4Relevant academic research and scientific papers
Oxazolo[3',2':1,2]pyrido[3,4-b]indoles and [1,3]-oxazino[3',2':1,2]pyrido[3,4-b]indoles by a simple condensation reaction of 3,4-dihydro-β-carboline with α- and β-hydroxycarboxylic acids
Wanner,Weber
, p. 387 - 390 (1994)
3,4-Dihydro-β-carboline (3) is reacted with trimethylsilyloxyacyl chlorides 2a, 2b, 7 and 11 to give the 1,3-oxazolidin-4-ones 4a/5a and 4b/5b and the 1,3-oxazin-4-ones 8/9 and 12, respectively, representing a new condensation reaction. The enantiomeric p
A Convenient Synthesis of 1,3-Oxazolidin-4-ones and 1,3-Oxazin-4-ones
Wanner, Klaus Th.,Weber, Ulrich
, p. 681 - 683 (2007/10/03)
1,3-Oxazolidin-4-ones and 1,3-oxazin-4-ones were synthesized by formal cyclocondensation of imines with α- or β-hydroxy acids.
Syntheses and Reactions of (Trimethylsiloxy)benzoyl Chlorides
Schwarz, Gerd,Alberts, Heinrich,Kricheldorf, Hans R.
, p. 1257 - 1270 (2007/10/02)
The (trimethylsiloxy)benzoyl chlorides 1-7 are easily to obtain under mild conditions from silylated hydroxybenzoic acids by means of thionyl chloride.Whereas these acid chlorides are stable at room temperature, they undergo condensation polymerisation at temperatures above 100 deg C.Reactions with various nucleophils, such as thioalcohols, phenols, amines, N,O-bis(silylated)amino acids and N-silylated lactams were investigated.With hexamethyldisilazane and thionyl chloride the (trimethylsiloxy)benzonitriles 21, 22 are accessible, and by means of trimethylsilylazide the (trimethylsiloxy)phenyl isocyanates 23-25 were obtained.Conversion with phenyl carbazate and subsequent silylation lead to the 2-(trimethylsiloxy)phenyl-1,3,4-oxadiazol-5-ones 27a-c.
