公开(公告)号：BR7707742A

公开(公告)日：1978-08-08

申请号：BR7707742

申请日：1977-11-22

Applicant: PHILAGRO SA

Inventor： ABBLARD J ,  BAUDOIN M

IPC: C07D207/40 ,  C07D207/404 ,  C07D207/44 ,  C07D207/448 ,  C07D207/452 ,  C07D211/40 ,  C07D203/22 ,  C07D205/04 ,  C07D207/02 ,  C07D207/24 ,  C07D209/48

Abstract: A process of preparing a N-substituted imide as disclosed, which is carried out in accordance with the equation: wherein R is an alkyl radical containing 1 to 8 carbon atoms, or an aryl radical having 1 or 2 phenyl rings bearing up to 5 substituents selected from the group consisting of 1 to 3 atoms of halogen, 1 to 2 nitro, amino, or hydroxy groups, 1 to 4 alkyl radicals, and 1 to 2 alkoxy or alkylthiol radicals each containing 1 to 4 carbon atoms, or a hexyl radical, optionally substituted; R' is a single bond or a hydrocarbon chain containing from 1 to 4 carbon atoms, in which two contiguous carbons may belong to a phenyl ring, said hydrocarbon chain being saturated or unsaturated and optionally substituted and R'' is a hydrogen atom, an alkaline metal atom, an ammonium atom or a lower alkyl having 1 to 4 carbon atoms, wherein the cyclization of the amic acid, R-NH-CO-R'-COOR'' is carried out in the presence of a mixed catalyst which results from the association of the formula, A B, in which A is a strong inorganic or organic acid and B is a Lewis base.

公开(公告)号：DK515477A

公开(公告)日：1978-06-30

申请号：DK515477

申请日：1977-11-21

Applicant: PHILAGRO SA

Inventor： ABBLARD J ,  BAUDOIN M

IPC: C07D207/40 ,  C07D207/404 ,  C07D207/44 ,  C07D207/448 ,  C07D207/452 ,  C07D

Abstract: A process of preparing a N-substituted imide as disclosed, which is carried out in accordance with the equation: wherein R is an alkyl radical containing 1 to 8 carbon atoms, or an aryl radical having 1 or 2 phenyl rings bearing up to 5 substituents selected from the group consisting of 1 to 3 atoms of halogen, 1 to 2 nitro, amino, or hydroxy groups, 1 to 4 alkyl radicals, and 1 to 2 alkoxy or alkylthiol radicals each containing 1 to 4 carbon atoms, or a hexyl radical, optionally substituted; R' is a single bond or a hydrocarbon chain containing from 1 to 4 carbon atoms, in which two contiguous carbons may belong to a phenyl ring, said hydrocarbon chain being saturated or unsaturated and optionally substituted and R'' is a hydrogen atom, an alkaline metal atom, an ammonium atom or a lower alkyl having 1 to 4 carbon atoms, wherein the cyclization of the amic acid, R-NH-CO-R'-COOR'' is carried out in the presence of a mixed catalyst which results from the association of the formula, A B, in which A is a strong inorganic or organic acid and B is a Lewis base.

公开(公告)号：LU78561A1

公开(公告)日：1979-06-13

申请号：LU78561

申请日：1977-11-21

Applicant: PHILAGRO SA

Inventor： ABBLARD J ,  BAUDOIN M

IPC: C07D207/40 ,  C07D207/404 ,  C07D207/44 ,  C07D207/448 ,  C07D207/452 ,  C07D ,  C07C

Abstract: A process of preparing a N-substituted imide as disclosed, which is carried out in accordance with the equation: wherein R is an alkyl radical containing 1 to 8 carbon atoms, or an aryl radical having 1 or 2 phenyl rings bearing up to 5 substituents selected from the group consisting of 1 to 3 atoms of halogen, 1 to 2 nitro, amino, or hydroxy groups, 1 to 4 alkyl radicals, and 1 to 2 alkoxy or alkylthiol radicals each containing 1 to 4 carbon atoms, or a hexyl radical, optionally substituted; R' is a single bond or a hydrocarbon chain containing from 1 to 4 carbon atoms, in which two contiguous carbons may belong to a phenyl ring, said hydrocarbon chain being saturated or unsaturated and optionally substituted and R'' is a hydrogen atom, an alkaline metal atom, an ammonium atom or a lower alkyl having 1 to 4 carbon atoms, wherein the cyclization of the amic acid, R-NH-CO-R'-COOR'' is carried out in the presence of a mixed catalyst which results from the association of the formula, A B, in which A is a strong inorganic or organic acid and B is a Lewis base.