Calcium Oxide: An Inexpensive Solid Support for Solvent Free Synthesis of Phosphorohydrazides and Thiophosphorohydrazide at Room Temperature
نویسندگان
چکیده
A simple, efficient, facile and surface mediated method for synthesis of hydrazides of organophosphorous acids has been developed from their corresponding chloridates using calcium oxides as a solid support at room temperature. The developed method gave the desired hydrazides in excellent yields (7592%) and avoids the use of column chromatography.
منابع مشابه
[B(OH)3]0.78[B(OH)2(OSO3H)]0.22 as a new, cheap and eco-friendly catalyst for synthesis of acylals at room temperature under solvent free conditions
[B(OH)3]0.78[B(OH)2(OSO3H)]0.22 or (BSA) was simply prepared by addition of chlorosulfonic acid to commercial boric acid at room temperature. This cheap and green solid acid was used as an efficient catalyst for synthesis of acylals from aldehydes under solvent-free conditions at room temperature.
متن کامل[B(OH)3]0.78[B(OH)2(OSO3H)]0.22 as a new, cheap and eco-friendly catalyst for synthesis of acylals at room temperature under solvent free conditions
[B(OH)3]0.78[B(OH)2(OSO3H)]0.22 or (BSA) was simply prepared by addition of chlorosulfonic acid to commercial boric acid at room temperature. This cheap and green solid acid was used as an efficient catalyst for synthesis of acylals from aldehydes under solvent-free conditions at room temperature.
متن کاملPolymer/HIO4 : An efficient catalyst for solvent-free synthesis of 2-naphthol azo dyes
A convenient, one-pot method for the synthesis of diazonium salt has been developed by the sequential diazotization of aromatic amines with NaNO2, polymer- supported periodic acid (PPIA) and 2-naphthole under solvent-free conditions at room temperature. By using this method, several types of aromatic amine, containing electron-withdrawing and electron-donating groups, were rapidly converted to ...
متن کاملPolymer/HIO4 : An efficient catalyst for solvent-free synthesis of 2-naphthol azo dyes
A convenient, one-pot method for the synthesis of diazonium salt has been developed by the sequential diazotization of aromatic amines with NaNO2, polymer- supported periodic acid (PPIA) and 2-naphthole under solvent-free conditions at room temperature. By using this method, several types of aromatic amine, containing electron-withdrawing and electron-donating groups, were rapidly converted to ...
متن کاملTiCl2/nano-γ-Al2O3 as an efficient catalyst for synthesis of substituted pyrroles under solvent-free conditions at room temperature
TiCl2/nano-γ-Al2O3 as a new heterogeneous Lewis acid catalyst was synthesized and characterized by FE-SEM, XRD, FT-IR, EDS, XRF, BET and TGA. N-substituted pyrroles have been synthesized via Paal–Knorr reaction in the presence of TiCl2/nano-γ-Al2O3 at room temperature under solvent-free conditions.
متن کامل