Comparison of Base-Promoted and Self-Catalyzed Conditions in the Synthesis of Isocyanates from Amines Using Triphosgene

Yiannis C.Charalambides; Stephen C.Moratti

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Comparison of Base-Promoted and Self-Catalyzed Conditions in the Synthesis of Isocyanates from Amines Using Triphosgene

机译：三光气由胺合成异氰酸酯的碱促进条件和自催化条件的比较

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Comparison of base-promoted and self-catalyzed conditions for the synthesis of isocyanates from amines and triphosgene shows no advantage in using an amine base in the majority of cases.The workup and isolation of the product is simplified under base-free conditions.Yields of between 50 and 90% after distillation were common.Only acid-sensitive substrates need a base catalyst.

机译：由胺和三光气合成异氰酸酯的碱促进条件和自催化条件的比较表明，在大多数情况下使用胺碱没有优势，在无碱条件下简化了产物的后处理和分离。蒸馏后通常占50％至90％。仅对酸敏感的底物需要碱催化剂。

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《Synthetic Communications》 |2007年第6期|共8页
作者
Yiannis C.Charalambides; Stephen C.Moratti;
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正文语种 eng
中图分类有机化学;
关键词
amines; isocyanates; triphosgene;

机译：胺;异氰酸酯;三光气;

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专利

1. Comparison of Base-Promoted and Self-Catalyzed Conditions in the Synthesis of Isocyanates from Amines Using Triphosgene [J] . Yiannis C.Charalambides, Stephen C.Moratti Synthetic Communications . 2007,第4a6期

机译：三光气由胺合成异氰酸酯的碱促进条件和自催化条件的比较
2. Base-Promoted Carbonylative Cyclization of Propargylic Amines with Selenium under CO Gas-free Conditions [J] . Wang Hai, Ying Jun, Lai Ming, Advanced synthesis & catalysis . 2018,第8期

机译：在共存无气体条件下，溶酶促进硒胺的羰基化环化
3. Base-Promoted Carbonylative Cyclization of Propargylic Amines with Selenium under CO Gas-free Conditions [J] . Wang Hai, Ying Jun, Lai Ming, Advanced synthesis & catalysis . 2018,第8期

机译：在共存无气体条件下，溶酶促进硒胺的羰基化环化
4. Study on Synthesis of Nitrophenyi Isocyanates Using Triphosgene [C] . Guirong Cao, Xueyan Zhao, Ruijie Xiao International Conference on Chemical Engineering and Advanced Materials . 2012

机译：使用三酚脱硝基苯酯的合成研究
5. Part A. Diastereoselective synthesis of protected secondary amines via reduction /alkylation or deprotonation /alkylation of N-diphenylphosphinylimines. Part B. Synthesis of secondary amines via 1,2-addition of organometallic reagents to N-diphenylphosphinylimines and subsequent alkylation [D] . Shin, Hyunshun 2001

机译：A部分：通过N-二苯基膦亚胺的还原/烷基化或去质子化/烷基化的非对映选择性合成保护的仲胺。 B部分：通过将有机金属试剂1,2-加成到N-二苯基膦亚胺和随后的烷基化反应来合成仲胺
6. Triphosgene–Amine Base Promoted Chlorination of Unactivated Aliphatic Alcohols [O] . Andrés Villalpando, Caitlan E. Ayala, Christopher B. Watson, -1

机译：未激活的脂肪醇的三光气胺碱促进氯化
7. Synthesis of Isocyanates from Phosgene and Aromatic Amines [O] . Haruo SHINGU, Tomizo NISHIMURA, Yoshinobu TAKEGAMI 1957

机译：从光气和芳族胺合成异氰酸酯

Comparison of Base-Promoted and Self-Catalyzed Conditions in the Synthesis of Isocyanates from Amines Using Triphosgene

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