Cyansäureester, 27 [1]. Triazino‐benzimidazole aus 2‐Amino‐benzimidazol‐1‐imidsäureestern und carbonylanalogen Verbindungen
Cyanic Acid Esters. 27. Triazino‐benzimidazoles from 2‐Amino‐benzimidazole‐1‐imid‐esters and Carbonyl Analogic Compounds The Cyclocondensation of 2‐amino‐benzimidazole‐1‐imid‐esters with aldehydes, carbonic acid anhydrides and isocyanates has been investigated. With aldehydes in the presence of pipe...
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crwiley:10.1002/prac.19793210305 2024-06-02T08:05:09+00:00 Cyansäureester, 27 [1]. Triazino‐benzimidazole aus 2‐Amino‐benzimidazol‐1‐imidsäureestern und carbonylanalogen Verbindungen Martin, Dieter Graubaum, Heinz 1979 http://dx.doi.org/10.1002/prac.19793210305 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fprac.19793210305 https://onlinelibrary.wiley.com/doi/pdf/10.1002/prac.19793210305 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal für Praktische Chemie volume 321, issue 3, page 379-386 ISSN 0021-8383 journal-article 1979 crwiley https://doi.org/10.1002/prac.19793210305 2024-05-03T10:47:46Z Cyanic Acid Esters. 27. Triazino‐benzimidazoles from 2‐Amino‐benzimidazole‐1‐imid‐esters and Carbonyl Analogic Compounds The Cyclocondensation of 2‐amino‐benzimidazole‐1‐imid‐esters with aldehydes, carbonic acid anhydrides and isocyanates has been investigated. With aldehydes in the presence of piperidine 4‐aryloxy‐1,2‐dihydro‐1,3,5‐triazino[1,2‐a]benzimidazoles 3 and with carbonic acid anhydrides 4‐aryloxy‐1,3,5‐triazino[1,2‐a]benzimidazoles 5 are formed. Isocyanates react with the imid esters to the corresponding 3‐substituted ureas 8 which on heating undergo acyl migration of the carbamoyl group followed by cyclocondensation to 4‐imino‐2‐oxo‐1,2,3,4‐tetrahydro‐1,3,5‐triazino[1,2‐a]benzimidazoles 12 . Article in Journal/Newspaper Carbonic acid Wiley Online Library Journal für Praktische Chemie 321 3 379 386 |
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English |
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Cyanic Acid Esters. 27. Triazino‐benzimidazoles from 2‐Amino‐benzimidazole‐1‐imid‐esters and Carbonyl Analogic Compounds The Cyclocondensation of 2‐amino‐benzimidazole‐1‐imid‐esters with aldehydes, carbonic acid anhydrides and isocyanates has been investigated. With aldehydes in the presence of piperidine 4‐aryloxy‐1,2‐dihydro‐1,3,5‐triazino[1,2‐a]benzimidazoles 3 and with carbonic acid anhydrides 4‐aryloxy‐1,3,5‐triazino[1,2‐a]benzimidazoles 5 are formed. Isocyanates react with the imid esters to the corresponding 3‐substituted ureas 8 which on heating undergo acyl migration of the carbamoyl group followed by cyclocondensation to 4‐imino‐2‐oxo‐1,2,3,4‐tetrahydro‐1,3,5‐triazino[1,2‐a]benzimidazoles 12 . |
format |
Article in Journal/Newspaper |
author |
Martin, Dieter Graubaum, Heinz |
spellingShingle |
Martin, Dieter Graubaum, Heinz Cyansäureester, 27 [1]. Triazino‐benzimidazole aus 2‐Amino‐benzimidazol‐1‐imidsäureestern und carbonylanalogen Verbindungen |
author_facet |
Martin, Dieter Graubaum, Heinz |
author_sort |
Martin, Dieter |
title |
Cyansäureester, 27 [1]. Triazino‐benzimidazole aus 2‐Amino‐benzimidazol‐1‐imidsäureestern und carbonylanalogen Verbindungen |
title_short |
Cyansäureester, 27 [1]. Triazino‐benzimidazole aus 2‐Amino‐benzimidazol‐1‐imidsäureestern und carbonylanalogen Verbindungen |
title_full |
Cyansäureester, 27 [1]. Triazino‐benzimidazole aus 2‐Amino‐benzimidazol‐1‐imidsäureestern und carbonylanalogen Verbindungen |
title_fullStr |
Cyansäureester, 27 [1]. Triazino‐benzimidazole aus 2‐Amino‐benzimidazol‐1‐imidsäureestern und carbonylanalogen Verbindungen |
title_full_unstemmed |
Cyansäureester, 27 [1]. Triazino‐benzimidazole aus 2‐Amino‐benzimidazol‐1‐imidsäureestern und carbonylanalogen Verbindungen |
title_sort |
cyansäureester, 27 [1]. triazino‐benzimidazole aus 2‐amino‐benzimidazol‐1‐imidsäureestern und carbonylanalogen verbindungen |
publisher |
Wiley |
publishDate |
1979 |
url |
http://dx.doi.org/10.1002/prac.19793210305 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fprac.19793210305 https://onlinelibrary.wiley.com/doi/pdf/10.1002/prac.19793210305 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Journal für Praktische Chemie volume 321, issue 3, page 379-386 ISSN 0021-8383 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/prac.19793210305 |
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Journal für Praktische Chemie |
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321 |
container_issue |
3 |
container_start_page |
379 |
op_container_end_page |
386 |
_version_ |
1800749927101366272 |