Carbonylative Suzuki–Miyaura couplings of sterically hindered aryl halides: synthesis of 2-aroylbenzoate derivatives
作者:Aya Ismael、Troels Skrydstrup、Annette Bayer
DOI:10.1039/d0ob00044b
日期:——
diversely substituted 2-aroylbenzoate esters featuring a new protocol for the carbonylative coupling of aryl bromides with boronic acids and a new strategy to favour carbonylative over non-carbonylative reactions. Two different synthetic pathways - (i) the alkoxycarbonylation of 2-bromo benzophenones and (ii) the carbonylative Suzuki-Miyaura coupling of 2-bromobenzoate esters - were evaluated. The latter approach
Synthesis of diaryl ketones via a phosphine-free Fukuyama reaction
作者:Kamala Kunchithapatham、Chad C. Eichman、James P. Stambuli
DOI:10.1039/c1cc16114h
日期:——
The synthesis of unsymmetrical diarylketones via the Fukuyama coupling of thioesters and organozinc reagents is described. Typically, the synthesis of diarylketones using this methodology provides low yields. The simple complex, Pd(dba)(2), was found to convert a variety of aryl thioesters to diarylketones in good yields.
Novel .beta.-D-phenylthioxylosides, their method of preparation and
申请人:Fournier Innovation et Synergie
公开号:US04960758A1
公开(公告)日:1990-10-02
The present invention relates to .beta.-D-phenylthioxyloside compounds selected from the group consisting of: (i) the .beta.-D-phenylthioxylosides of the formula: ##STR1## in which: R.sub.1 and R.sub.2, which can be identical or different, which represent a hydrogen atom or a trifluoromethy or cyano group, A represents CHOH or CO and Y represents a hydrogen atom or an acyl group; and (ii) epimers thereof when A is CHOH. The said .beta.-D-phenylthioxyloside compounds are useful in therapy as antithrombotics.
Novel beta-D-phenylthioxylosides, their method of preparation and their use as pharmaceuticals
申请人:FOURNIER INDUSTRIE ET SANTE
公开号:EP0367671A2
公开(公告)日:1990-05-09
The present invention relates to β-D-phenylthioxytoside compounds selected from the group consisting of:
(i) the β-D-phenylthioxylosides of the formula:
in which: R, and R2, which can be identical or different, each represent a hydrogen atom or a trifluoromethyl or cyano group, A represents CHOH or CO and Y represents a hydrogen atom or an acyl group; and
(ii) epimers thereof when A is CHOH.
The said β-D-phenylthioxyloside compounds are useful in therapy as antithrombotics.
本发明涉及选自以下组别的β-D-苯硫基糖苷化合物:
(i) 式中β-D-苯基硫代氧糖苷:
其中R和R2可以相同或不同,各自代表氢原子或三氟甲基或氰基,A代表CHOH或CO,Y代表氢原子或酰基;以及
(ii) 当 A 为 CHOH 时,其表聚物。
上述 β-D-苯基硫酮糖苷化合物可作为抗血栓药物用于治疗。