849403-49-2Relevant academic research and scientific papers
Copper-catalyzed pyrrole synthesis from 3,6-dihydro-1,2-oxazines
Yasukawa, Naoki,Kuwata, Marina,Imai, Takuya,Monguchi, Yasunari,Sajiki, Hironao,Sawama, Yoshinari
, p. 4409 - 4413 (2018/10/17)
Highly-functionalized pyrroles could be effectively synthesized from 3,6-dihydro-1,2-oxazines using a heterogeneous copper on carbon (Cu/C) under neat heating conditions. Furthermore, the in situ formation of 3,6-dihydro-1,2-oxazines via the hetero Diels-Alder reaction between nitroso dienophiles and 1,3-dienes and the following Cu/C-catalyzed pyrrole synthesis also provided the corresponding pyrrole derivatives in a one-pot manner.
Modification of organic compounds with Lawesson's reagent
Kayukova,Praliyev,Gut'Yar,Baitursynova
, p. 148 - 160 (2015/04/14)
Application in organic synthesis of Lawesson's reagent, 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide, provides a possibility to replace an oxygen atom for a sulfur atom in the carbonyl group of ketones, esters, amides, in ether group, and also either to induce a rearrangement of the initial structure of organic compounds with or without inclusion of sulfur atoms or to lead to the formation of various types of organophosphorus compounds. The formed organosulfur compounds exhibit a wide range of biological action.
Arylamino-thieno-oxobutanainides under Lawesson's conditions: Competition between thienylpyrrole and bithiophene formation
Raposo, M. Manuela M.,Sampaio, Ana M. B. A.,Kirsch
, p. 199 - 210 (2007/10/03)
1-Aryl-2-thienyl-substituted pyrroles and/or 5-arylamino-2,2′- bithiophenes were synthesized by treatment of arylamino-thieno-oxobutanamides with Lawesson's reagent. These in turn were prepared by direct amidation of 4-oxo-(2-thienyl)butanoic acid through DCC-BtOH mediated reactions.
