SU1401842A1 - Method of synthesis of diphenylmethylureas - Google Patents
Method of synthesis of diphenylmethylureasInfo
- Publication number
- SU1401842A1 SU1401842A1 SU4069511/04A SU4069511A SU1401842A1 SU 1401842 A1 SU1401842 A1 SU 1401842A1 SU 4069511/04 A SU4069511/04 A SU 4069511/04A SU 4069511 A SU4069511 A SU 4069511A SU 1401842 A1 SU1401842 A1 SU 1401842A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- urea
- diphenylmethane
- derivative
- synthesis
- chcooh
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
FIELD: organic chemistry, urea derivatives. SUBSTANCE: synthesis is carried out from corresponding derivatives of diphenylmethane and urea in the presence of mineral acid - concentrated HSOin the medium of organic solvent - CHCOOH at 70-95 C at molar ratio diphenylmethane derivative: urea derivative: HSO: CHCOOH = 1:(51-77):(51-77):2.2. Diphenylcarbinol is used as diphenylmethane derivative. The yield of the end diphenylureas is up to 92% , period process is 3-4 h, temperature is decreased from 135-140 C to 70-95 C, diphenylmethylcarbinol is available reagent. EFFECT: simplified process. 4 tbl
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4069511/04A SU1401842A1 (en) | 1986-05-20 | 1986-05-20 | Method of synthesis of diphenylmethylureas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4069511/04A SU1401842A1 (en) | 1986-05-20 | 1986-05-20 | Method of synthesis of diphenylmethylureas |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1401842A1 true SU1401842A1 (en) | 1995-02-27 |
Family
ID=60534030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4069511/04A SU1401842A1 (en) | 1986-05-20 | 1986-05-20 | Method of synthesis of diphenylmethylureas |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1401842A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2537361C1 (en) * | 2013-07-18 | 2015-01-10 | Общество С Ограниченной Ответственностью "Синтегал" | Optic isomers of (+) and (-)-benzhydrylureas and (+) and (-)-1-[(3-chlorophenyl)-phenyl-methyl]urea, pharmaceutical composition based on thereof and method of thereof obtaining |
RU2569684C1 (en) * | 2014-12-29 | 2015-11-27 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Method of obtaining meta-chlorobenzhydrylurea(halodif) with application of magnetic nanoparticles, modified with sulphogroups |
-
1986
- 1986-05-20 SU SU4069511/04A patent/SU1401842A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2537361C1 (en) * | 2013-07-18 | 2015-01-10 | Общество С Ограниченной Ответственностью "Синтегал" | Optic isomers of (+) and (-)-benzhydrylureas and (+) and (-)-1-[(3-chlorophenyl)-phenyl-methyl]urea, pharmaceutical composition based on thereof and method of thereof obtaining |
RU2569684C1 (en) * | 2014-12-29 | 2015-11-27 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Method of obtaining meta-chlorobenzhydrylurea(halodif) with application of magnetic nanoparticles, modified with sulphogroups |
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