منابع مشابه
Convenient Route to Core-modified Corroles by Acid-catalyzed Condensation of Furylpyrromethanes and Dipyrromethanes
Corroles and oxacorroles were synthesized by acid-catalyzed, 2+2 condensation. The condensation afforded different corroles bearing core-heteroatoms at the predesignated locations. Regioselective α-α’ linkage between pyrrole and furan or between pyrrole and pyrrole was achieved by keeping the linking carbon at different position of starting dipyrromethanes. The condensation was only fruitful wh...
متن کاملBismuth- and Iron-Catalyzed Three-Component Synthesis of α-Amino Acid Derivatives: A Simple and Convenient Route to α-Arylglycines
Efficient bismuthand iron-catalyzed three-component syntheses of α-arylglycines have been developed. These methods provide a general, atom-economic route to various N-protected α-arylglycines starting from readily available amides (or carbamates), glyoxalates, and (hetero)arenes with water as the only by-product. Scope and limitations of bismuthand iron-catalyzed reactions are discussed and com...
متن کاملA convenient route to mono-alkyl substituted phosphanylboranes HRP-BH2- NMe3, prospective precursors to poly(alkylphosphinoboranes)
A simple method is reported for accessing borylphosphonium iodides [RH2P–BH2∙NMe3]I (1a: R = Me, 1b: R = Et, 1c: R = Pr) by the addition of iodoalkanes to PH2–BH2∙NMe3. Complexes 1a-c were characterized by multinuclear NMR spectroscopy, and 1a and 1b were characterized by single crystal Xray diffraction. It was possible to synthesize the Lewis base stabilized organosubstituted phosphanylborane ...
متن کاملCopper-catalyzed reductive coupling of tosylhydrazones with amines: a convenient route to α-branched amines.
A general procedure for the reductive coupling of N-tosylhydrazones with amines in the presence of Cu(acac)(2) and Cs(2)CO(3) has been developed. The protocol is very effective and chemoselective with various primary and secondary aliphatic amines, aminoalcohols as well as azole derivatives to give α-branched amines in good yields.
متن کاملA Convenient Synthetic Route to Partial-Cone p-Carboxylatocalix[4]arenes.
p-Carboxylatocalix[n]arenes have emerged as useful building blocks for the construction of a diverse range of supramolecular assemblies. A convenient route to a p-carboxylatocalix[4]arene that is locked in a partial-cone conformation is presented. The conformation gives the molecule markedly different topological directionality relative to those previously used in self- and metal-directed assem...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1974
ISSN: 0002-1369
DOI: 10.1080/00021369.1974.10861262