Application of 1034-39-5. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 1034-39-5, Name is Dibromotriphenylphosphorane
The invention relates to the compounds of the formula wherein each R independently represents hydrogen, lower alkyl, halogen, trifluoromethyl, lower alkoxy, carbocyclic or heterocyclic aryl, carbocyclic or hetero-cyclic aryloxy, carbocyclic or heterocyclic aryl-lower alkyloxy, carbocyclic or heterocyclic aryl-lower alkyl, C3-C7-cycloalkyl-lower alkyloxy, or Cs-Cv-cycloalk-yloxy; n represents 1, 2, 3 or 4; m represents 0, 1 or 2; A represents a direct bond or lower alkylene; X represents oxygen or sulfur; Ri represents hydrogen, acyl, lower alkoxycarbonyl, aminocarbonyl, mono- or di-lower alkylaminocarbonyl, lower alkenylaminocarbonyl, lower alkynylaminocarbonyl, carbocyclic or heterocy-clic aryl-lower alkylaminocarbonyl, carbocyclic or heterocyclic arylaminocarbonyl, C3-C7-cycloalk-ylaminocarbonyl or C3-C7-cycloalkyl-lower al-kylaminocarbonyl; R2 represents lower alkyl, lower alkoxycarbonyl-lower alkyl, C3-C7-cycloalkyl, carbo-cyclic or heterocyclic aryl, carbocyclic or heterocyclic aryl-lower alkyl, C3-C7-cycloalkyl-lower alkyl, amino, mono- or di-lower alkylamino, lower alkenylamino, lower alkynylamino, carbocyclic or heterocyclic aryl-lower alkylamino, carbocyclic or heterocyclic arylamino, C3-C7-cycloalkylamino, C3-C7-cycloalkyl-lower alkylamino, lower alkoxycarbonyl-lower alkyl-amino or lower alkoxy; R3 and R4 independently repre-sent hydrogen or lower alkyl; and pharmaceuticallyacceptable salts thereof; which are useful as 5-lipoxyge-nase inhibitors.
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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate