Di-n-butyl ammonium chlorosulfonate as a highly efficient and recyclable ionic liquid for the synthesis of N-containing bisphosphonates
作者:MudumalaVeeranarayana Reddy、Reddi Mohan Naidu Kalla、Lee Sang Dong、Yeon Tae Jeong
DOI:10.1016/j.catcom.2014.12.021
日期:2015.2
The preparation and description of a novel secondary amine ionic liquid, di-n-butyl ammonium chlorosulfonate, is described. The di-n-butyl ammonium ionic liquid (DBA IL) was characterized by FT-IR, elemental analysis, NMR spectroscopies, and wide-angle X-ray scattering techniques, as well as thermogravimetric analysis. The DBA IL functions as an efficient, environmentally benign, and recyclable catalyst with short reaction times and high catalytic activity for the synthesis of a variety of N-containing bisphosphonates in high yields. Another merit of this ionic liquid shown that the purification of products by non-chromatographic method with good to excellent yields of the desired products. (C) 2014 Elsevier B.V. All rights reserved.
PYRIDYLBISPHOSPHONATES FOR USE AS A THERAPEUTICAL AGENT
申请人:LEIRAS OY
公开号:EP0762883A1
公开(公告)日:1997-03-19
US5393748A
申请人:——
公开号:US5393748A
公开(公告)日:1995-02-28
US5866556A
申请人:——
公开号:US5866556A
公开(公告)日:1999-02-02
[EN] PYRIDYLBISPHOSPHONATES FOR USE AS A THERAPEUTICAL AGENT<br/>[FR] PYRIDYLBISPHOSPHONATES A TITRE D'AGENT THERAPEUTIQUE
申请人:LEIRAS OY
公开号:WO1995033466A1
公开(公告)日:1995-12-14
(EN) The present invention relates to certain optionally ring substituted pyridinylaminomethylidene bisphosphonic acid tetralkyl esters (I) and their use for the treatment of bone diseases, such as osteolytic bone diseases due to malignancy, Paget's disease and primary and secondary osteoporosis.(FR) La présente invention concerne certains tétraalkyle esters de l'acide pyridinylaminométhylidène bisphosphonique, portant éventuellement des substitutions de cycle et ayant la formule (I), ainsi que leur utilisation dans le traitement de maladies des os telles que les maladies ostéolytiques dues à des tumeurs, la maladie osseuse de Paget et l'ostéoporose primaire ou secondaire.