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Mannich Condensation (mannich + condensation)

Distribution by Scientific Domains
Chemistry75%

Selected Abstracts

Mercurous Chloride Catalyzed Mannich Condensation of Terminal Alkynes with Secondary Amines and Aldehydes.

CHEMINFORM, Issue 50 2005
Pin-Hua Ll
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Microwave-enhanced Mannich Condensation of Terminal Alkynes, Primary Amines with Paraformaldehyde on Cuprous Iodide Doped Alumina under Solvent Free Conditions

CHINESE JOURNAL OF CHEMISTRY, Issue 6 2003
Wang 'Lei
Abstract A microwave-enhanced, solventless Mannich condensation of terminal alkynes, primary amines with paraformaldehyde on cuprous iodide doped alumina has been investigated. The structures of products depend on the ratio of alkyne to amine and paraformaldehyde. [source]

Synthesis and characterization of a cured epoxy resin with a benzoxazine monomer containing allyl groups

JOURNAL OF APPLIED POLYMER SCIENCE, Issue 6 2010
Shiao-Wei Kuo
Abstract Vinyl-terminated benzoxazine (VB-a), which can be polymerized through ring-opening polymerization, was synthesized through the Mannich condensation of bisphenol A, formaldehyde, and allylamine. This VB-a monomer was then blended with epoxy resin and then concurrently thermally cured to form an epoxy/VB-a copolymer network. To understand the curing kinetics of this epoxy/VB-a copolymer, dynamic differential scanning calorimetry measurements were performed by the Kissinger and Flynn,Wall,Ozawa methods. Fourier transform infrared (FTIR) analyses revealed the presence of thermal curing reactions and hydrogen-bonding interactions of the epoxy/VB-a copolymers. Meanwhile, a significant enhancement of the ring-opening and allyl polymerizations of the epoxy was observed. For these interpenetrating polymer networks, dynamic mechanical analysis and thermogravimetric analysis results indicate that the thermal properties increased with increasing VB-a content in the epoxy/VB-a copolymers. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 [source]

Microwave-enhanced Mannich Condensation of Terminal Alkynes, Primary Amines with Paraformaldehyde on Cuprous Iodide Doped Alumina under Solvent Free Conditions

CHINESE JOURNAL OF CHEMISTRY, Issue 6 2003
Wang 'Lei
Abstract A microwave-enhanced, solventless Mannich condensation of terminal alkynes, primary amines with paraformaldehyde on cuprous iodide doped alumina has been investigated. The structures of products depend on the ratio of alkyne to amine and paraformaldehyde. [source]