- Construction of a bidentate arsenic ligand library starting from a cyclooligoarsine
-
Bidentate ligands are, needless to say, pivotal in organo-metallic chemistry. In contrast to phosphorus ligands, practical synthetic protocols for the arsenic analogues remain to be developed, resulting in a lack of bidentate arsenic ligands. Herein the methods that we have recently developed were applied for bidentate arsenic ligands whose frameworks are well known in phosphorus ligand systems such as dppe, dppp, dppf, xantphos, etc. The palladium dichloride complexes of the obtained ligands were synthesized and used for the Suzuki-Miyaura coupling reaction.
- Imoto, Hiroaki,Konishi, Masafumi,Nishiyama, Shintaro,Sasaki, Hiroshi,Tanaka, Susumu,Yumura, Takashi,Naka, Kensuke
-
supporting information
p. 1312 - 1315
(2019/10/22)
-
- New Reagents, XXXIV. (Diphenylarsino)methyllithium: Synthesis and Preparative Applications
-
(Diphenylarsino)methyl iodide (3) was synthesized for the first time (76 percent). (Diphenylarsino)methyllithium (2), stable at 20 deg C, is accessible from 3 (ca. 100 percent) by iodine-lithium exchange with butyl- or phenyllithium and by organoelement-lithium exchange with butyllithium from diphenylarsane (4d; 92 percent). 2, prepared from 4d, gives far better yields of (diphenylarsino)alkanes by the reaction with alkyl halides than 2, obtained from 3.To the contrary, no difference is observed in the reactivity of 2 from 3 or 4d towards aldehydes and ketones.
- Kauffmann, Thomas,Altepeter, Bruno,Klas, Norbert,Kriegesmann, Reinhard
-
p. 2353 - 2364
(2007/10/02)
-