- Tert-Butyl nitrite mediated azo coupling between anilines and imidazoheterocycles
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A tBuONO mediated practical and efficient method for the synthesis of azo imidazoheterocycles with broad functionalities has been achieved by the reaction between imidazoheterocycles and anilines at room temperature in goods yields. Azo indoliz
- Chakraborty, Amrita,Jana, Sourav,Kibriya, Golam,Dey, Amrita,Hajra, Alakananda
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- Tert -Butyl nitrite (TBN) as the N atom source for the synthesis of substituted cinnolines with 2-vinylanilines and a relevant mechanism was studied
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A green method to synthesize cinnolines by 6π electrocyclic reaction with alkenyl amines and TBN has been developed. TBN plays a dual role both as a nitrogen atom source and an oxidant in this procedure. Relevant mechanism experiments reveal that the reaction proceeds through electrocyclic reaction and with diazo hydroxide as a key intermediate.
- Pang, Xiaobo,Zhao, Lianbiao,Zhou, Dagang,He, Ping Yong,An, Zhenyu,Ni, Ji Xiang,Yan, Rulong
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supporting information
p. 6318 - 6322
(2017/08/10)
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- The use of fused ring-1,2,4-benzotriazine derivatives as herbicides or plant growth regulators for the control of undesired plants or vegetation, compounds and compositions thereof, and processes for their preparation
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The use of fused ring-1,2,4-benzotriazine derivatives as herbicides or plant growth regulators for the control of undesired plants or vegetation, compounds and compositions thereof, and processes for their preparation.The invention relates to the use of a compound of the formula (I) or a salt thereof: wherein A-W, X, Y, Z, R1, R2, R3 and R4 are defined in the description, as herbicides or plant growth regulators for the control of undesired plants or vegetation, to compounds and compositions thereof, and to processes for their preparation.
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