Neutral hexacoordinate phosphorus: Substituted carbodiimide phosphoranes and other chelated substituted 2-pyridine derivatives

Dietmar K. Kennepohl; Ronald G. Cavell

doi:10.1080/10426509008038979

Neutral hexacoordinate phosphorus: Substituted carbodiimide phosphoranes and other chelated substituted 2-pyridine derivatives

Dietmar K. Kennepohl
, Ronald G. Cavell

Centre for Science

University of Alberta

Research output: Contribution to journal › Journal Article › peer-review

5 Citations (Scopus)

Abstract

A series of neutral hexacoordinate X⁶ phosphorus i I compounds of the general formula (CF₃)_nPN(R)C(Cl)N(R) (n = 0, 1, 2, 3; R = cyclohexyl, isopropyl) has been prepared. The parent compounds are obtained by “insertion” of carbodiimide into the P-Cl bond of a X⁵-chlorophosphorane. Substituted pyridines also react readily with X⁵ chloro and fluor° phosphoranes to form 2-methylamino, thio and oxopyridine chelates of the form X4P(Epy) (E = O, NMe and S^; X - F^, Cl) in which the phosphorus achieves six coordination through acceptance of the pyridine nitrogen. Selected reactions and the fluxional behavior of the X⁶ systems are discussed.

Original language	English
Pages (from-to)	359-362
Number of pages	4
Journal	Phosphorus, Sulfur, and Silicon and the Related Elements
Volume	49-50
Issue number	1-4
DOIs	https://doi.org/10.1080/10426509008038979
Publication status	Published - 1 May 1990

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@article{a65eb1fbe3d44f4c969ecb8c8e115a12,

title = "Neutral hexacoordinate phosphorus: Substituted carbodiimide phosphoranes and other chelated substituted 2-pyridine derivatives",

abstract = "A series of neutral hexacoordinate X6 phosphorus i I compounds of the general formula (CF3)nPN(R)C(Cl)N(R) (n = 0, 1, 2, 3; R = cyclohexyl, isopropyl) has been prepared. The parent compounds are obtained by “insertion” of carbodiimide into the P-Cl bond of a X5-chlorophosphorane. Substituted pyridines also react readily with X5 chloro and fluor° phosphoranes to form 2-methylamino, thio and oxopyridine chelates of the form X4P(Epy) (E = O, NMe and S; X - F, Cl) in which the phosphorus achieves six coordination through acceptance of the pyridine nitrogen. Selected reactions and the fluxional behavior of the X6 systems are discussed.",

author = "Kennepohl, \{Dietmar K.\} and Cavell, \{Ronald G.\}",

note = "Funding Information: We thank the Natural Sciences and Engineering Research Council of Canada for financial support of this work.",

year = "1990",

month = may,

day = "1",

doi = "10.1080/10426509008038979",

language = "English",

volume = "49-50",

pages = "359--362",

number = "1-4",

}

TY - JOUR

T1 - Neutral hexacoordinate phosphorus

T2 - Substituted carbodiimide phosphoranes and other chelated substituted 2-pyridine derivatives

AU - Kennepohl, Dietmar K.

AU - Cavell, Ronald G.

N1 - Funding Information: We thank the Natural Sciences and Engineering Research Council of Canada for financial support of this work.

PY - 1990/5/1

Y1 - 1990/5/1

N2 - A series of neutral hexacoordinate X6 phosphorus i I compounds of the general formula (CF3)nPN(R)C(Cl)N(R) (n = 0, 1, 2, 3; R = cyclohexyl, isopropyl) has been prepared. The parent compounds are obtained by “insertion” of carbodiimide into the P-Cl bond of a X5-chlorophosphorane. Substituted pyridines also react readily with X5 chloro and fluor° phosphoranes to form 2-methylamino, thio and oxopyridine chelates of the form X4P(Epy) (E = O, NMe and S; X - F, Cl) in which the phosphorus achieves six coordination through acceptance of the pyridine nitrogen. Selected reactions and the fluxional behavior of the X6 systems are discussed.

AB - A series of neutral hexacoordinate X6 phosphorus i I compounds of the general formula (CF3)nPN(R)C(Cl)N(R) (n = 0, 1, 2, 3; R = cyclohexyl, isopropyl) has been prepared. The parent compounds are obtained by “insertion” of carbodiimide into the P-Cl bond of a X5-chlorophosphorane. Substituted pyridines also react readily with X5 chloro and fluor° phosphoranes to form 2-methylamino, thio and oxopyridine chelates of the form X4P(Epy) (E = O, NMe and S; X - F, Cl) in which the phosphorus achieves six coordination through acceptance of the pyridine nitrogen. Selected reactions and the fluxional behavior of the X6 systems are discussed.

UR - https://www.scopus.com/pages/publications/84972949255

U2 - 10.1080/10426509008038979

DO - 10.1080/10426509008038979

M3 - Journal Article

AN - SCOPUS:84972949255

SN - 1042-6507

VL - 49-50

SP - 359

EP - 362

JO - Phosphorus, Sulfur, and Silicon and the Related Elements

JF - Phosphorus, Sulfur, and Silicon and the Related Elements

IS - 1-4

ER -

Neutral hexacoordinate phosphorus: Substituted carbodiimide phosphoranes and other chelated substituted 2-pyridine derivatives

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