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Studies on organophosphorus compounds—XL: Reactions of ketones with 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane 2,4-disulfide

✍ Scribed by S. Scheibye; R. Shabana; S.-O. Lawesson; C. Rømming

Publisher
Elsevier Science
Year
1982
Tongue
French
Weight
701 KB
Volume
38
Category
Article
ISSN
0040-4020

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## Abstract 2,4‐Bis‐(4‐methoxyphenyl)‐1,3,2,4‐dithiadiphosphetane‐2,4‐disulfide (Lawesson's reagent) (**1**) reacted with 2‐hydrazino‐3‐methyl‐quinoxaline (**2**) to give [1,2,4,3]‐triazaphospholo[4,5‐__a__]quinoxaline derivative **3**. The Mannich reaction using different amines on compound **3**