187347-94-0Relevant academic research and scientific papers
Efficient microwave access to polysubstituted amidines from imidoylbenzotriazoles
Katritzky, Alan R.,Cai, Chunming,Singh, Sandeep K.
, p. 3375 - 3380 (2007/10/03)
Microwave reactions of primary and secondary amines with imidoylbenzotriazoles 6a-w gave diversely substituted amidines 7a-Aa in 76-94% yields. Convenient preparations of a variety of amides 5a-Ab (87-96%) and imidoylbenzotriazoles 6a-w (56-95%) have also been developed using microwave irradiation under mild conditions and short reaction times. These results demonstrate further the advantages of microwave synthesis and introduce a new application of imidoylbenzotriazoles in the preparation of polysubstituted amidines.
A novel route to imidoylbenzotriazoles and their application for the synthesis of enaminones
Katritzky, Alan R.,Hayden, Amy E.,Kirichenko, Kostyantyn,Pelphrey, Phillip,Ji, Yu
, p. 5108 - 5111 (2007/10/03)
Reactions of secondary amides 2a-i with 1-chloro-1H-benzotriazole and triphenylphosphine give imidoylbenzotriazoles 3a-i. The treatment of 3a,b,e,g with silyl enol ethers 5a,b in the presence of potassium tert-butoxide provides a new general approach to enaminoketones 6a-h.
Synthesis of 1,2-Disubstituted Benzimidazoles by the Photolysis of Imidoylbenzotriazoles
Katritzky, Alan R.,Yang, Baozhen,Abonia, Rodrigo,Insuasty, Braulio
, p. 540 - 541 (2007/10/03)
A novel synthesis of 1,2-disubstituted benzimidazoles based on photolysis of imidoylbenzotriazoles is described.
IMIDOYLBENZOTRIAZOLES: STABLE ALTERNATIVES TO IMIDOYL CHLORIDES
Katritzky, Alan R.,Stevens, Christian V.,Zhang, Gui-Fen,Jiang, Jinlong,Kimpe, Norbert De
, p. 231 - 240 (2007/10/02)
Imidoylbenzotriazoles were prepared from the corresponding amides and 1,1'-sulfinyldibenzotriazole, generated in situ from 1-trimethylsilylbenzotriazole and thionyl chloride.The imidoylbenzotriazoles are stable precursors for the synthesis of imidates and
