Reactivity of 1-Isothiocyanato Six Membered Silatrane towards Lewis Acids

ABSTRACT: This manuscript deal with the reaction of the 1-Isothiocyanato six membered silatrane with different Lewis acids. The adducts 1, 2, 3 and 4 so formed were characterized by elemental analysis, infrared spectroscopy, 1 H, 13 C, 29 Si NMR spectroscopy. η 1 -S and η 1 -N bonding pattern were observed the coordination modes of the isothiocyanato group

Synthesis and Structural Characterization of Organopropylsilatranes Derived From Benzotriazole

ABSTRACT: Four new organopropylsilatranes derived from benzotriazole are reported. The benzotriazolyl functionalized silanes (1 and 2) undergo transesterification reaction with triethanolamine and tris(isopropanol)amine in the presence of a base, thus forming the corresponding silatranes 3, 4, 5 and 6. All the silatranes have been characterized by elemental analysis and spectroscopic techniques [IR, NMR ( 1 H, 13 C] and mass

Unsymmetrically urea silatranes: Synthesis, characterization and a selective on–off fluorescence response to acetate anion

New unsymmetrically Substituted Urea enclosed Silatranes (USUS) 2–5 are prepared in good yield by nucleophilic attack of pyrrolidine, piperidine, 3-methylpyridine-2-amine and N-methylbenzenamine containing active hydrogen atom on newly synthesized 3-isocyanatopropylsilatrane 1. All the compounds have been characterized by elemental analysis, IR, multinuclear (H and C) NMR and mass spectrometry. The single crystal X-ray crystallography technique facilitates the establishment of exact structures of silatranes 2, 3 and 4. The fluorescence titration results have revealed a selective on–off fluorescence response of silatranes toward acetate anion.The authors are grateful to UGC, New Delhi, India, for their financial support

Synthesis, Characterization, and Reactivity of 2,2′-Oxydiethanol Complexes of Silicon

<div><p>GRAPHICAL ABSTRACT</p><p></p></div

Copper-Based Metal–Organic Frameworks (MOFs) as an Emerging Catalytic Framework for Click Chemistry

In the extensive terrain of catalytic procedures for the synthesis of organic molecules, metal–organic frameworks (MOFs) as heterogenous catalysts have been investigated in a variety of chemical processes, including Friedel–Crafts reactions, condensation reactions, oxidations, and coupling reactions, and utilized owing to their specific properties such as high porosity, tuneability, extraordinary catalytic activity, and recyclability. The eminent copper-tailored MOF materials can be exceptionally dynamic and regioselective catalysts for click reactions (1,3-dipolar cycloaddition reaction). Considering the fact that Cu(I)-catalyzed alkyne–azide cycloaddition (CuAAC) reactions can be catalyzed by several other copper catalysts such as Cu (II)-β-cyclodextrin, Cu(OAc)2, Fe3O4@SiO2, picolinimidoamide–Cu(II) complex, and Cu(II) porphyrin graphene, the properties of sorption and reusability, as well as the high density of copper-MOFs, open an efficient and robust pathway for regimented catalysis of this reaction. This review provides a comprehensive description and analysis of the relevant literature on the utilization of Cu-MOFs as catalysts for CuAAC ‘click’ reactions published in the past decade

Schiff base functionalized Organopropylsilatranes: Synthesis and structural characterization

Synthesis of Schiff bases linked to organopropylsilatranes were performed by condensation reaction of post-functionalized silatranes such as aminopropylsilatrane (4), aminopropyl-3,7,10-trimethylsilatrane (5) and N-substituted aminopropylsilatrane (10) with two different aldehydes viz. pyrrole-2-carboxaldehyde and 2-hydroxy- 1-napthaldehyde. The resulting Schiff base substituted silatranes were well characterized by elemental analysis, spectroscopic studies [IR, (H-1, C-13) NMR, and MS]. The structures of two silatranes were confirmed by single crystal X-ray diffraction analysis

1-Isothiocyanatosilatrane Derived from Asymmetric Tetradentate Ligand: Synthesis, Structural Analyses, Reactivity, and Computational Studies

<div><p>GRAPHICAL ABSTRACT</p><p></p></div