公开(公告)号：EP0296221A4

公开(公告)日：1989-04-24

申请号：EP88900864

申请日：1988-01-06

Applicant: STANFORD RES INST INT

Inventor： SCHMITT ROBERT J ,  HARDEE JOHN R ,  ROSS DAVID S ,  WOLFE JAMES F

IPC: C07C201/00 ,  C07C67/00 ,  C07C201/08 ,  C07C205/20 ,  C07C205/23

CPC classification number: C07C201/08 ,  C07C205/23

公开(公告)号：CA1307007C

公开(公告)日：1992-09-01

申请号：CA555904

申请日：1988-01-05

Applicant: STANFORD RES INST INT

Inventor： SCHMITT ROBERT J ,  HARDEE JOHN R ,  ROSS DAVID S ,  WOLFE JAMES F

IPC: C07C201/00 ,  C07C67/00 ,  C07C201/08 ,  C07C205/20 ,  C07C205/23

Abstract: A method of nitrating resorcinol which is selective for the production of the 4,6-dinitro-resorcinol isomer. A resorcinol-based starting material is admixed with a nitrating solution from which substantially all nitrogen dioxide and nitrous has been removed. The nitrating solution contains white fuming nitric acid, a nitrosonium ion control agent such as urea, and, optionally, concentrated sulfuric acid. The 4,6-dinitroresorcinol isomer is provided in yields of about 65-85% with minimal production of undesirable side products.

公开(公告)号：AU1156888A

公开(公告)日：1988-07-27

申请号：AU1156888

申请日：1988-01-06

Applicant: STANFORD RES INST INT

Inventor： WOLFE JAMES F ,  ROSS DAVID S ,  HARDEE JOHN R ,  SCHMITT ROBERT J

IPC: C07C201/00 ,  C07C67/00 ,  C07C201/08 ,  C07C205/20 ,  C07C205/23 ,  C07C79/28

Abstract: A method of nitrating resorcinol which is selective for the production of the 4,6-dinitro resorcinal isomer. A resorcinol-based starting material is admixed with a nitrating solution from which substantially all nitrogen dioxide and nitrous has been removed. The nitrating solution contains white fuming nitric acid, a nitrosonium ion control agent such as urea, and, optionally, concentrated sulfuric acid. The 4,6-dinitroresorcinal isomer is provided in yields of about 65-85% with minimal production of undesirable side products.