2619-00-3Relevant articles and documents
Room-temperature Pd-catalyzed C-H chlorination by weak coordination: One-pot synthesis of 2-chlorophenols with excellent regioselectivity
Sun, Xiuyun,Sun, Yonghui,Zhang, Chao,Rao, Yu
supporting information, p. 1262 - 1264 (2014/02/14)
A room-temperature Pd(ii)-catalyzed regioselective chlorination reaction has been developed for a facile one-pot synthesis of a broad range of 2-chlorophenols. The reaction demonstrates an excellent regioselectivity and reactivity for C-H chlorination. This reaction represents one of the rare examples of mild C-H functionalization at ambient temperature.
Microwave-promoted copper-free Sonogashira-Hagihara couplings of aryl imidazolylsulfonates in water
Civicos, Jose F.,Alonso, Diego A.,Najera, Carmen
supporting information, p. 203 - 208 (2013/03/14)
Aryl imidazol-1-ylsulfonates have been efficiently cross-coupled with aryl-, alkyl-, and silylacetylenes in neat water under copper-free conditions at 110 °C assisted by microwave irradiation. Using 0.5mol% of an oxime palladacycle as precatalyst, 2-dicyclohexylphosphino-2′,6′- dimethoxybiphenyl (SPhos, 2mol%) as ligand, hexadecyltrimethylammonium bromide (CTAB) as additive, and triethylamine (TEA) as base, a wide array of disubstituted alkynes has been prepared in good to high yields in only 30min. Copyright
Phosphane-free suzukimiyaura coupling of aryl imidazolesulfonates with arylboronic acids and potassium aryltrifluoroborates under aqueous conditions#
Civicos, Jose Francisco,Gholinejad, Mohammad,Alonso, Diego A.,Najera, Carmen
supporting information; experimental part, p. 907 - 909 (2011/12/05)
Aryl imidazole-1-sulfonates are efficiently cross-coupled with arylboronic acids and potassium aryltrifluoroborates using only 0.5 mol% of oxime palladacycles 1 under aqueous conditions at 110 °C. Under these simple phosphane-free reaction conditions a wide array of biaryl derivatives has been prepared in high yields. This methodology allows in situ phenol sulfonation and one-pot Suzuki arylation as well as the employment of microwave irradiation conditions.