Palladium-Catalyzed Synthesis of Fluorenes by Intramolecular C(sp2)–H Activation at Room Temperature
作者:Tetsuaki Fujihara、Yutaka Tanji、Yasushi Tsuji
DOI:10.1055/s-0039-1690812
日期:2020.5
The synthesis of fluorenes by intramolecular Pd-catalyzed C(sp2)–H activation of 2-arylbenzyl chlorides was conducted at room temperature by using commercially available triphenylphosphine and pivalic acid as ligands. The desired reactions proceeded efficiently at room temperature, and various substrates were converted into the corresponding fluorene derivatives in excellent yields.
Pd-catalyzed atom-efficient cross-coupling of triarylbismuth reagents with protecting group-free iodophenylmethanols: Synthesis of biarylmethanols
作者:Maddali L.N. Rao、Suresh Meka
DOI:10.1016/j.tetlet.2020.151676
日期:2020.3
An atom-efficient procedure for the synthesis of functionalized biarylmethanols via the Pd-catalyzedcross-coupling reactions of differently functionalized iodophenylmethanols and triarylbismuth reagents is described. This protecting group-free direct couplings of 2-, 3- or 4-iodophenylmethanols with triarylbismuth reagents afforded biarylmethanols in good to high yields.
The invention relates to the compounds of formula: (I) which are as defined in the specification. Their use as chiral ligands in catalytic aryl transfer reactions to aromatic aldehydes is also described.
1,3-OXAZOLIDIN -2-ONE DERIVATIVES USEFUL AS CETP INHIBITORS
申请人:ALI Amjad
公开号:US20110178059A1
公开(公告)日:2011-07-21
Compounds having the structure of Formula I, including pharmaceutically acceptable salts of the compounds, are CETP inhibitors, and are useful for raising HDL-cholesterol, reducing LDL-cholesterol, and for treating or preventing atherosclerosis. The compounds have 3 cyclic groups connected by single bonds, as for example triphenyl, which are attached directly to the ring of formula I or attached at the position B.
1,3-Oxazolidin-2-One Derivatives Useful as Cetp Inhibitors
申请人:Ali Amjad
公开号:US20090137548A1
公开(公告)日:2009-05-28
Compounds having the structure of Formula I, including pharmaceutically acceptable salts of the compounds, are CETP inhibitors, and are useful for raising HDL-cholesterol, reducing LDL-cholesterol, and for treating or preventing atherosclerosis. The compounds have 3 cyclic groups connected by single bonds, as for example triphenyl, which are attached directly to the ring of formula I or attached at the position B.