Fragrance raw materials aldehydes and pro-fragrances having a tertiary alpha carbon atom
申请人:THE PROCTER & GAMBLE COMPANY
公开号:US20040067870A1
公开(公告)日:2004-04-08
The present invention relates to fragrance raw materials having a tertiary alpha carbon atom, to fragrance delivery systems which comprise said tertiary alpha carbon atom fragrance raw materials, and pro-fragrances which are capable of delivering said tertiary alpha carbon atom fragrance raw material and thereby providing an enhanced and sustained aesthetic fragrance benefit. The compounds and systems of the present invention are suitable for use in fine fragrances, perfumes, and other personal care compositions.
α‐Arylation, α‐Arylative Esterification, or Acylation: A Stoichiometry‐Dependent Trichotomy in the Pd‐Catalyzed Cross‐Coupling between Aldehydes and Aryl Bromides
作者:Pradeep Nareddy、Clément Mazet
DOI:10.1002/asia.201300724
日期:2013.11
Three′s company: The selective α‐arylation and α‐arylativeesterification of linear and branched aldehydes is reported for a variety of bromoarenes. The acylation of arylbromides can be achieved with linear aldehydes (see scheme). All these transformations were performed with a single [(N‐heterocyclic carbene)Pd] catalyst through adjustment of the stoichiometry of the reagents and the appropriate