Sulfated polyborate: A dual catalyst for the reductive amination of aldehydes and ketones by NaBH4
作者:Prerna Ganwir、Ganesh Chaturbhuj
DOI:10.1016/j.tetlet.2021.153143
日期:2021.6
An efficient, quick, and environment-friendly one-pot reductiveamination of aldehydes or ketones was developed. In ethanol at 70 °C, a imination catalyzed by sulfated polyborate and further reduced by sodium borohydride yields various amines. The present method has many significant benefits, including a shorter reaction time, excellent yields, and a hassle-free, straightforward experimental process
开发了一种高效、快速、环保的醛或酮的单锅还原胺化反应。在 70 °C 的乙醇中,由硫酸化多硼酸盐催化并由硼氢化钠进一步还原生成各种胺。本方法具有许多显着的好处,包括更短的反应时间、优异的产率和轻松、直接的实验过程。由于其灵活性,该反应具有广泛的应用,包括用于还原胺化的仲胺。
[EN] METHOD FOR THE SYNTHESIS OF AMINOALKYLENEPHOSPHONIC ACID<br/>[FR] PROCÉDÉ DE SYNTHÈSE D'ACIDE AMINOALKYLÈNEPHOSPHONIQUE
申请人:STRAITMARK HOLDING AG
公开号:WO2014012987A1
公开(公告)日:2014-01-23
The present invention is related to a method for the synthesis of an aminoalkylenephosphonic acid or its phosphonate esters comprising the following steps: a) forming, in the presence of an aldehyde or ketone and an acid catalyst, a reaction mixture by mixing a compound comprising at least one HNR1R2 moiety or a salt thereof, with a compound having one or more P-O-P anhydride moieties, said moieties comprising one P atom at the oxidation state (+III) and one P atom at the oxidation state (+III) or (+V), wherein the ratio of moles of aldehyde or ketone to N-H moieties is 1 or more and wherein the ratio of N-H moieties to P-O-P anhydride moieties is 0.3 or more and, b) recovering the resulting aminoalkylenephosphonic acid comprising compound or its phosphonate esters.
METHOD FOR THE SYNTHESIS OF AMINOALKYLENEPHOSPHONIC ACID
申请人:STRAITMARK HOLDING AG
公开号:US20150225431A1
公开(公告)日:2015-08-13
A method for the synthesis of an aminoalkylenephosphonic acid or its phosphonate esters including the following steps: a) forming, in the presence of an aldehyde or ketone and an acid catalyst, a reaction mixture by mixing a compound having at least one HNR
1
R
2
moiety or a salt thereof, with a compound having one or more P—O—P anhydride moieties, the moieties having one P atom at the oxidation state (+III) and one P atom at the oxidation state (+III) or (+V), wherein the ratio of moles of aldehyde or ketone to N—H moieties is 1 or more and wherein the ratio of N—H moieties to P—O—P anhydride moieties is 0.3 or more, and b) recovering the resulting aminoalkylenephosphonic acid having compound or its phosphonate esters.
Method for the synthesis of aminoalkylenephosphonic acid
申请人:MONSANTO TECHNOLOGY LLC
公开号:US10280189B2
公开(公告)日:2019-05-07
A method for the synthesis of an aminoalkylenephosphonic acid or its phosphonate esters including the following steps: a) forming, in the presence of an aldehyde or ketone and an acid catalyst, a reaction mixture by mixing a compound having at least one HNR1R2 moiety or a salt thereof, with a compound having one or more P—O—P anhydride moieties, the moieties having one P atom at the oxidation state (+III) and one P atom at the oxidation state (+III) or (+V), wherein the ratio of moles of aldehyde or ketone to N—H moieties is 1 or more and wherein the ratio of N—H moieties to P—O—P anhydride moieties is 0.3 or more, and b) recovering the resulting aminoalkylenephosphonic acid having compound or its phosphonate esters.
一种合成氨基烯基膦酸或其膦酸酯的方法,包括以下步骤:a) 在醛或酮和酸催化剂存在下,将具有至少一个 HNR1R2 基团的化合物或其盐 与具有一个或多个 P-O-P 酸酐基团的化合物混合,形成反应混合物、这些分子具有一个氧化态为(+III)的P原子和一个氧化态为(+III)或(+V)的P原子,其中醛或酮的摩尔数与N-H分子数之比为1或以上,N-H分子数与P-O-P酸酐分子数之比为0.3 或更多,以及 b) 回收所得的具有化合物或其膦酸酯的氨基烷基膦酸。