Phosphorylation process and catalyst

US6479656B1 · kind B1 · utility

Assignees

• PERSTORP AB · SE
• Polish Academy of Science, Centre of Molecular and Macromolecular Studies · SL

Inventors

• Jan Michalski · Terespol, PL
• Wojciech Dabkowski · Białystok, PL
• Friedrich Cramer · Göttingen, DE

Key dates

• Filing date: Oct 16, 2000
• Grant date: Nov 12, 2002
• Expiry date: Oct 16, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2231/40
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process and use of at least one catalyst for phosphorylation, in particular phosphitylation, of hydroxyl groups, whereby a phosphorous compound is added to a hydroxyfunctional compound having at least one hydroxyl group. The addition yields a phosphorylated product having at least one O—P bond. The catalyst employed in the process is of the general formula (R1)nX(R2)4−n, wherein each R1 independently is hydrogen, at least one hydrocarbyl, amino, halogenated and/or silylated hydrocarbyl group, X is Si, Ge or Sn, each R2 independently is a leavening group and is F, Cl, Br, I or a sulphonate group optionally being halogen substituted and wherein n is 1, 2 or 3.