The following record is from the CAplusSM database
CAPLUS COPYRIGHT 2009 ACS
| PATENT NUMBER: |
US 7517983 |
| TITLE: |
Hydrazide catalytic production process from hydrazines and dicarboxylic acids in the presence of Lewis acids |
| INVENTOR(S): |
Lopes, Claudio Cerqueira; Lopes, Rosangela Sabattini Capella; Cardoso, Jari Nobrega; Alves Da Silva, Jacqueline; Ferreira Gomes, Leticia |
| PATENT ASSIGNEE(S): |
Universidade Federal do Rio de Janeiro-UFRJ, Brazil |
| SOURCE: |
PC T Int. Appl., 14 pp. CODEN: PIXXD2 |
| LANGUAGE: |
English |
ABSTRACT:
A process to form hydrazides (e.g., luminol) from the reaction of a hydrazine and a dicarboxylic (e.g., 3-nitrophthalic acid) using a Lewis acid catalyst (e.g., niobium pentachloride) is described. The reaction occurs in a safe reactional environment, utilizing smooth conditions, neither involving high temps. nor high pressures, producing the desired products with high yields, between 90-95%. The invention also describes a kit for utilization of chemiluminescent substances, comprised of two solns. |
| View the full text patent from USPTO. |
Updated: 7/16/2009 7:59:24 AM
