191155-80-3Relevant articles and documents
6-Membered heterocyclic compound and use thereof
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Page/Page column 206, (2008/06/13)
A compound represented by the general formula (I) or a salt thereof: [T represents oxygen atom and the like; V represents CH2 and the like; RO1 to RO4 represent hydrogen atom and the like; A represents a linear alkylene group or linear alkenylene group having 2 to 8 carbon atoms and the like; D represents carboxyl group and the like; X represents ethylene group, trimethylene group and the like; E represents —CH(OH)— group and the like; and W represent —U1—(RW1)(RW2)—U2—U3 group (U1 represents a single bond, an alkylene group having 1 to 4 carbon atoms and the like; RW1 and RW2 represent hydrogen atom and the like; U2 represents a single bond, an alkylene group having 1 to 4 carbon atoms and the like; and U3 represent an alkyl group having 1 to 8 carbon atoms and the like), or a residue of a carbon ring or heterocyclic compound], which can be utilized as an active ingredient of medicaments effective for prophylactic and/or therapeutic treatment of skeletal diseases such as osteoporosis and fracture, glaucoma, ulcerative colitis and the like.
Direct synthesis of 3-arylpropionic acids by tetraphosphine/palladium catalysed Heck reactions of aryl halides with acrolein ethylene acetal
Lemhadri, Mhamed,Doucet, Henri,Santelli, Maurice
, p. 11533 - 11540 (2007/10/03)
Through the use of [PdCl(C3H5)]2/Cis,cis, cis-1,2,3,4-tetrakis(diphenylphosphinomethyl)cyclopentane as a catalyst, a range of aryl bromides undergoes Heck reaction with acrolein ethylene acetal. With this acetal, the selective formation of 3-arylpropionic acids/esters was observed. The functional group tolerance on the aryl halide is remarkable; substituents such as fluoro, methyl, methoxy, acetyl, formyl, benzoyl, nitro or nitrile are tolerated. Furthermore, this catalyst can be used at low loading, even for reactions of sterically hindered aryl bromides. Graphical Abstract.