4,5-bis(diphenylphosphino)acridine:: A new type of tridentate phosphorus-nitrogen-phosphorus ligands

被引：28

作者：

Hillebrand, S ^{[1
]}

Bartkowska, B ^{[1
]}

Bruckmann, J ^{[1
]}

Krüger, C ^{[1
]}

Haenel, MW ^{[1
]}

机构：

[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany

来源：

TETRAHEDRON LETTERS | 1998年 / 39卷 / 08期

关键词：

D O I：

10.1016/S0040-4039(97)10790-0

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Reaction of 4,5-difluoroacridine (8) with two equivalents of potassium diphenylphosphide (Ph2PK) yielded the title compound 3. Contrarily, diphenylphosphine (Ph2PH) reacted with 8 under addition, and 4,5-difluoro-9-diphenyl-9,10-dihydroacridine (12) was obtained. Compound 8 was prepared from 2-amino-3-fluorobenzoic acid (13) in a four step synthesis. As it is shown by the preparation of the metal complexes 4,5-bis(diphenylphosphino)acridine-palladium dichloride (16) and 4,5-bis(diphenylphosphino)acridine-molybdenum tricarbonyl (17), compound 3 is capable of acting as a tridentate PNP ligand which coordinates transition metals in an approximately "T-shaped" planar coordination geometry. Single crystal X-ray structure analyses are reported for 3 and 17. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：813 / 816

页数：4

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