89979-04-4Relevant articles and documents
Revisit to Henry reaction by non conventional heterogeneous and efficient catalyst for nitroalcohol synthesis
Jadhav, Swati D.,Patil, Rupesh C.,Jagdale, Ashutosh A.,Patil, Suresh S.
, p. 593 - 606 (2021/11/03)
A sustainable, green and efficient process for the synthesis of 2-nitro alcohol derivatives from different substituted aromatic aldehydes with nitroalkane by stirring at ambient temperature with high product yield is reported. Adoption of very mild reaction conditions, use of Calcined Eggshell (CES) as natural catalyst and simple workup are expected to contribute to the development of environmentally benign synthetic method for Henry (nitroaldol) reaction. CES is ecologically safe, inexpensive, and attractive heterogeneous base catalyst obtained from renewable resources, thus opening a new perspective for this process. Graphical abstract: [Figure not available: see fulltext.]
Method for preparing 2-nitroalkyl-1-alcohol compound and application thereof
-
Paragraph 0063-0079, (2021/04/14)
The invention relates to a method for preparing a 2-nitroalkane-1-alcohol compound and application thereof, and particularly provides a method for preparing the 2-nitroalkane-1-alcohol compound from iron powder/lead dichloride. The process has the advantages of good yield, high diastereoselectivity, wide functional group tolerance and good compatibility.
Efficient Synthesis of α-Ketothioamides From α-Nitroketones, Amines or DMF and Elemental Sulfur Under Oxidant-Free Conditions
Zhang, Zhenlei,Yang, Jiusi,Yu, Renjie,Wu, Kairui,Bu, Jiping,Li, Shaoke,Qian, Peng,Sheng, Liangquan
supporting information, p. 5209 - 5212 (2021/10/19)
We have developed a practical, general protocol for denitration of readily available α-nitroketones with sulfur and amines to access a broad range of α-ketothioamides under mild conditions. Such a reaction proceeds under metal-, oxidant-, and catalyst-free conditions to provide synthetically useful α-ketothioamides. Furthermore, the mild reaction conditions tolerate a wide range of substrates especially for the synthesis of aliphatic α-ketothioamides which are rarely reported.