34331-80-1Relevant academic research and scientific papers
Open vessel mode microwave-assisted synthesis of 2-oxazolines from carboxylic acids
Sharma, Rishi,Vadivel, Subramanian K.,Duclos Jr., Richard I.,Makriyannis, Alexandros
experimental part, p. 5780 - 5782 (2009/12/26)
Microwave-assisted synthesis of 2-oxazolines from carboxylic acids using the open vessel technique is described. This efficient method involves direct condensation of carboxylic acids with excess 2-amino-2-methyl-1-propanol at 170 °C to give the corresponding 2-oxazolines in moderate to excellent yields.
One pot direct synthesis of amides or oxazolines from carboxylic acids using Deoxo-Fluor reagent
Kangani, Cyrous O.,Kelley, David E.
, p. 8917 - 8920 (2007/10/03)
A mild and highly efficient one pot-one step condensation and/or condensation-cyclization of various acids to amides and/or oxazolines using Deoxo-Fluor reagents is described. Parallel syntheses of various free fatty acids with 2-amino-2,2-dimethyl-1-propanol resulted with excellent yields.
Compositions and method comprising heterocyclic compounds containing two heteroatoms as membrane penetration enhancers
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, (2008/06/13)
A method and compositions for enhancing absorption of topically administered physiologically active agents through the skin and mucous membranes of humans and animals in a transdermal device or formulation for local or systemic use, comprising a therapeutically effective amount of a pharmaceutically active agent and a non-toxic, effective amount of penetration enhancing agent of the formula I: STR1 wherein R is a saturated or unsaturated, straight or branched, cyclic or acyclic hydrocarbon group with from 1 to 19 carbon atoms, alkoxyalkyl, haloalkyl, specifically trifluoromethyl, alkoxy, amino, alkylamino and acylamino; R' and R" are hydrogen, alkyl, trifluoromethyl, alkoxyalkyl, aminoalkyl, alkyl- and acylaminoalkyl, carboxy, carbalkoxy, hydroxyalkyl or lower alkyl ester thereof; X is O or NR1 wherein R1 is hydrogen, alkyl, alkenyl, alkoxyalkyl, carbalkoxyalkyl, aminoalkyl, alkyl- and acylaminoalkyl, hydroxyalkyl or hydroxyalkyloxyalkyl and lower alkyl ester thereof; and n is 2 or 3 are disclosed.
Compositions and method comprising heterocyclic compounds containing two heteroatoms
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, (2008/06/13)
A method and compositions for topically administering physiologically active agents through the skin and mucous membranes of humans and animals in a transdermal device or formulation for systemic use or to the skin of humans and animals for localized use comprising applying to such skin or membrane a mixture of said physiologically active agent and a non-toxic, effective penetrating amount of penetration enhancing compound having the structural formula I: STR1 wherein: R is a saturated or unsaturated hydrocarbon group with from 5 to 19 carbon atoms; R' and R" are hydrogen, lower alkyl, trifluoromethyl, lower hydroxyalkyl or lower alkyl ester of lower hydroxyalkyl, with the proviso that both R' and R" are not lower hydroxyalkyl; X is O or NR1 ; R1 being hydrogen, lower alkyl, lower alkenyl, lower hydroxyalkyl or lower alkyl ester of lower hydroxyalkyl are disclosed.
Novel Synthesis of α-Substituted Acrylic Acids
Serota, S.,Simon, J. R.,Murray, E. B.,Linfield, W. M.
, p. 4147 - 4151 (2007/10/02)
A facile three-step procedure has been developed for the synthesis of α-substituted acrylic acids.In the first step, a carboxylic acid having no α-substituents is condensed with 2-amino-2-methylpropanol (AMP) to form the corresponding oxazoline.The oxazoline reacts readily with paraformaldehyde to give an intermediate mixture of mono- and dimethylol derivatives which upon heating forms the α-methylene derivatives of the oxazoline.The latter, upon acid hydrolysis, yields the α-substituted acrylic acid generally in an overall yield of above 70percent and the acids are usually at least 95percent pure.
