ruthenium catalyst was prepared starting with readily accessible starting materials. Under inert gas atmosphere and in air the catalyst showed high activity for the direct synthesis of esters from primary alcohols and of amides from primary alcohols and amines. Di-, tri-, and oligo-amides were obtained by using specific starting materials.
Olfactory signature and odorant mixture having the same
申请人:Yeda Research and Development Co. Ltd.
公开号:US11062794B2
公开(公告)日:2021-07-13
An odorant mixture is disclosed. The odorant mixture comprises N odorant components wherein N equals at least 20. Each odorant component is characterized by a multidimensional vector of attributes. A z score of an average of characteristic distances between vectors corresponding to odorant components in the mixture and vectors corresponding to odorant components in a group of M odorant components but not in the mixture is less than 2.
本发明公开了一种气味剂混合物。气味剂混合物包括 N 种气味剂成分,其中 N 至少等于 20。每个气味成分由一个多维属性向量表征。混合物中的气味成分对应向量与 M 组气味成分中但不在混合物中的气味成分对应向量之间的平均特征距离的 Z 值小于 2。
Dehydration Reactions in Water. Surfactant-Type Brønsted Acid-Catalyzed Direct Esterification of Carboxylic Acids with Alcohols in an Emulsion System
作者:Kei Manabe、Xiang-Min Sun、Shū Kobayashi
DOI:10.1021/ja016338q
日期:2001.10.1
OLFACTORY SIGNATURE AND ODORANT MIXTURE HAVING THE SAME
申请人:Yeda Research and Development Co. Ltd.
公开号:US20140221269A1
公开(公告)日:2014-08-07
An odorant mixture is disclosed. The odorant mixture comprises N odorant components wherein N equals at least 20. Each odorant component is characterized by a multidimensional vector of attributes. A z score of an average of characteristic distances between vectors corresponding to odorant components in the mixture and vectors corresponding to odorant components in a group of M odorant components but not in the mixture is less than 2.