Bis(dialkylamino)cyanoboranes: highly efficient reagents for the Strecker-type aminative cyanation of aldehydes and ketonesElectronic supplementary information (ESI) available: detailed experimental procedures. See http://www.rsc.org/suppdata/cc/b2/b203645b/
NOVEL IMIDAZOLE COMPOUND AND USE THEREOF AS MELANOCORTIN RECEPTOR AGONIST
申请人:MITSUBISHI TANABE PHARMA CORPORATION
公开号:US20180258076A1
公开(公告)日:2018-09-13
The present invention relates to a novel imidazole compound or a pharmaceutically acceptable salt thereof having a melanocortin receptor agonistic activity, and medical use thereof. The present invention relates to an imidazole compound represented by general formula [I]
[wherein: Ring A represents an optionally substituted aryl group or the like; R
1
represents a hydrogen atom, an optionally substituted alkyl group, or the like; R
2
represents a hydrogen atom, a halogen atom, or the like; and R
3
represents an optionally substituted alkyl group] or a pharmaceutically acceptable salt thereof.
An environmentally friendly and highly active mesoporous Co(II) complex on mesoporous SBA-15 material could be used as an easily recoverable catalyst for the synthesis of α-aminonitriles from a wide range of aldehydes/ketones and primary or secondary amines with good to excellent conversions yields at room temperature under solventless conditions. The catalyst can be recovered by simple filtration and could be reused at least 10 times without loss of catalytic activity.
Heterogeneously catalysed Strecker-type reactions using supported Co(ii) catalysts: microwave vs. conventional heating
作者:Fatemeh Rajabi、Saghar Nourian、Sara Ghiassian、Alina M. Balu、Mohammad Reza Saidi、Juan Carlos Serrano-Ruiz、Rafael Luque
DOI:10.1039/c1gc15741h
日期:——
α-aminonitriles could be efficiently prepared from various aldehydes/ketones and primary or secondary amines using a highly active and stable Co(II) complex supported on different mesoporous supports at both room temperature and low temperature microwave irradiation undersolventlessconditions. Catalysts were also highly reusableunder the investigated reactionconditions and could be reused at least 10 times
Nafion–Fe: A New Efficient “Green” Lewis Acid Catalyst for the Ketonic Strecker Reaction
作者:G. K. Surya Prakash、Inessa Bychinskaya、Eric R. Marinez、Thomas Mathew、George A. Olah
DOI:10.1007/s10562-012-0958-2
日期:2013.4
yields and high purity by the Streckerreaction from ketones, aliphatic/aromatic amines and TMSCN using a new “green” Lewis acid catalyst, Nafion–Fe (iron Nafionate, Fe(III) salt of Nafion–H, a solid polymeric perfluoroalkanesulfonic acid) under conventional thermal as well as microwave conditions. Microwave and solvent-free conditions applied in this method shorten the reaction times, improve the yields