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Advanced Materials, Volume 38, Issue 4, 16 January 2026.An effective post‐synthetic modification strategy utilizing [4+4] cycloaddition is demonstrated to fabricate ladder‐branched polyimides of intrinsic microporosity (PIM‐PIs) with significantly enhanced performance characteristics for membrane‐based gas separation.
Tae Hoon Lee +3 more
wiley +1 more source
Rearrangement of N-methylaniline over H-ZSM-5, H-Theta-1, and H-Y zeolites [PDF]
, 1993 It was reported recently that aniline in the presence of ammonia was converted to picolines over zeolite catalysts. The picolines are important intermediates in the dye and resins industries. However, no report has appeared on the reactions of arylamines
Fields, Roy +2 more
core +1 more source
, 2020 The V2O5–MoO3–P2O5 (VMPO) catalyst has been prepared in situ by thermal decomposition of vanado-molybdophosphoric acid (PMoV) on TiO2 support at 475°C. The TiO2 supported VMPO catalysts are characterized by FT–IR, XRD, BET surface area, NH3–TPD, and H2 ...
Senapati, Rabinarayan, Dutta, P.
core
Reaction of acyl isocyanates with pyridine derivatives [PDF]
, 1984 Trichloroacetyl isocyanate reacts with 2- and 4-picolines to form substituted trichloroacetylamidates. Benzoyl isocyanate forms a dimer in the presence of picolines.
Arbuzov B., Zobova N., Alekseichuk I.
core
Synthesis of aliphatic amines and substituted pyridines over HZSM-5 catalyst [PDF]
, 1991 1041-1043The reactions of propylene oxide, propylene glycol, ethylene glycol and acetaldehyde with ammonia have been carried out in the temperature range 220°C-450°C with water as diluent.
Subrahmanyam, M, Kulkarni, S J
core
AN UNEQUIVOCAL SYNTHESIS OF 4-METHYL-2-OXO-(2H)-PYRIDO- [1,2-a]PYRIMIDINES1*
, 2002 An unequivocal high yielding synthesis of 4-methyl-2-oxo- (2H)-pyrido[1,2-a]pyrimidines from N-(1,3-dioxobutyl)-2- amino pyridines/picolines/quinoline, is being ...
Suri, K. A. +3 more
core +1 more source
, 2004 The crystal structures of the inclusion compounds of 4,4'-bis(diphenylhydroxymethyl)diphenyl with 3- and 4-picolines were elucidated. The selectivity of enclathration is concentration dependent.
Weber, E. +3 more
core
Conductometric study of charge-transfer Complexes [PDF]
, 1990 171-173Conductometric-titration method has been successfully used for determining the stoichiometry of charge-transfer complexes in polar media. The systems studied are: iodine complexes of pyridine, picolines and phenothiazine and chloranil complexes ...
Shedbalker, Vinay P +2 more
core
, 2017 The heterogeneous catalytic synthesis of pyridine and methylpyridines (picolines) was carried out by the reaction of ethanol with formaldehyde and ammonia over aluminosilicates with different acidic properties and textural characteristics: zeolite ...
Boris I. Kutepov +4 more
core +1 more source
The synthesis of ortho-stilbazoles (2-styrylpyridines) (microreview). [PDF]
Chem Heterocycl Compd (N Y), 2022 Sorokin SP, Ershov OV.
europepmc +1 more source