Nicotinium Dichromate (=3-Carboxypyridinium Dichromate; NDC) as an Efficient Reagent for the Oxidative Deamination of Amines and Aminophosphonates
作者:Sara Sobhani、Sima Aryanejad、Mahdi Faal Maleki
DOI:10.1002/hlca.201100404
日期:2012.4
A new method for the efficient synthesis of aldehydes, ketones, and oxophosphonates from various types of amines (primary and secondary) and aminophosphonates via oxidative deamination by nicotinium dichromate (=3‐carboxypyridinium dichromate; NDC) is described.
Oxidative Deamination of α-Aminophosphonates and Amines by Zinc Dichromate Trihydrate (ZnCr2O7˙3H2O) under Solvent-Free Conditions at Room Temperature
作者:Sara Sobhani、Mahdi Maleki
DOI:10.1055/s-0029-1219174
日期:2010.2
A novel method for the rapid and efficient conversion of a variety ot α-aminophosphonates to α-ketophosphonates using ZnCr 2 O 7 ·3H 2 O viaoxidativedeamination under solvent-free conditions at room temperature is described. This method is also applicable to the rapid and highly selective oxidation of various types of ordinary amines (primary and secondary) to aldehydes and ketones in good to high
描述了一种使用 ZnCr 2 O 7 ·3H 2 O 在室温下无溶剂条件下通过氧化脱氨基快速有效地将多种 α-氨基膦酸酯转化为 α-酮膦酸酯的新方法。该方法也适用于各种类型的普通胺(伯胺和仲胺)以良好到高产率快速和高选择性氧化成醛和酮。
Preparation of α-ketophosphonates by oxidation of α-hydroxyphosphonates with neutral alumina supported potassium permanganate (NASPP) under solvent-free conditions and potassium permanganate in dry benzene
作者:Habib Firouzabadi、Nasser Iranpoor、Sara Sobhani
DOI:10.1016/s0040-4039(01)02146-3
日期:2002.1
Various types of α-hydroxyphosphonates were converted to α-ketophosphonates in high yields by potassiumpermanganate in dry benzene or by neutral alumina supported potassiumpermanganate (NASPP) under solvent-free conditions.
The aldol reactions of α-keto phosphonates and aldehydes were facilitated by an axially chiral biphenylprolinamide under mild conditions, affording the synthetically and pharmaceutically useful products in high yields and excellent enantioselectivities.
Synthesis of tertiary propargylic phosphonates by addition of trialkynylaluminum reagents to acyl phosphonates and investigation of their antimicrobial activities
A series of propargylic alcohols containing phosphonates was synthesized by addition reactions of tris-(propynyl) and tris-(phenylethynyl)aluminum reagents to acyl phosphonates in good yields. Aromatic moieties of the acyl phosphonates with electron-withdrawing groups generally resulted in better isolated chemical yield. Selected propargylic phosphonates were tested for antimicrobial activities. Compounds