title: Alkali-metal-catalyzed addition of primary and secondary phosphines to carbodiimides. A general and efficient route to substituted phosphaguanidines.
abstract: Organo alkali metal compounds such as (n)BuLi and (Me3Si)2NK act as excellent catalyst precursors for the addition of phosphine P-H bonds to carbodiimides, offering a general and atom-economical route to substituted phosphaguanidines, with excellent tolerability to aromatic C-Br and C-Cl bonds.
authors.affiliation: Organometallic Chemistry Laboratory, RIKEN (The Institute of Physical and Chemical Research), Hirosawa 2-1, Wako, Saitama 351-0198, Japan.
authors.forename: Wen-Xiong
authors.initials: WX
authors.lastname: Zhang
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Nishiura
authors.forename: Zhaomin
authors.initials: Z
authors.lastname: Hou