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Dive into the research topics where Philip J. Hammond is active.

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Featured researches published by Philip J. Hammond.


Phosphorus Sulfur and Silicon and The Related Elements | 1983

SOME CHEMISTRY OF 2,8-DIOXA-5-AZA-1-PHOSPHABICYCLO[3.3.0] OCTANE AND 2,10-DIOXA-6-AZA-1-PHOSPHABICYCLO[4.4.0] DECANE. FURTHER EVIDENCE FOR THE BIPHILIC INSERTION MECHANISM

Donald B. Denney; Dorothy Z. Denney; Philip J. Hammond; Chialang Huang; Lun-Tsu Liu; Kuo-Shu Tseng

Abstract 2,8-Dioxa-5-aza-1-phosphabicyclo[3.3.0] octane, 1, and 2,10-dioxa-6-aza-1-phosphabicyclo[4.4.0] decane, 2, both react with diethyl peroxide to give phosphoranes containing two ethoxy groups. The reactivities of 1 and 2 towards diethyl peroxide are very different. The reaction of 1 at 0°C in methylene chloride is complete after 7 days whereas 2 and diethyl peroxide in methylene chloride require 30 days at room temperature for 89% reaction. The opposite reactivity of 1 and 2 are found in their reactions with diphenyl disulfide. These data strongly support a direct insertion by phosphorus into the oxygen-oxygen bond of the peroxide. Compounds, 1 and 2 were allowed to react with trifluoroethoxy benzenesulfenate and 1,1,1,3,3,3-hexafluoroisopropoxy benzenesulfenate. Dioxyphosphoranes were formed in all cases. The structures of these materials are discussed. Products of condensation reactions of 1 and 2 were also obtained and structural features are noted.


Journal of the American Chemical Society | 1981

Preparation and NMR studies of tetraalkoxyselenuranes and tetraalkoxytelluranes

Donald B. Denney; Dorothy Z. Denney; Philip J. Hammond; Y. F. Hsu


Journal of the American Chemical Society | 1981

Preparation and chemistry of penta- and hexacoordinated phosphorus compounds containing trifluoroethoxy groups

Donald B. Denney; Dorothy Z. Denney; Philip J. Hammond; Yu-Pin Wang


Journal of the American Chemical Society | 1980

Structures of some bicyclic and tricyclic phosphoranes in solution

Donald B. Denney; Dorothy Z. Denney; Philip J. Hammond; Chialang Huang; Kuo-Shu Tseng


Journal of the American Chemical Society | 1980

Some caged oxaazaphosphoranes

Donald B. Denney; Dorothy Z. Denney; Dragan M. Gavrilovic; Philip J. Hammond; Chialang Huang; Kuo-Shu Tseng


Journal of Organic Chemistry | 1983

Preparation and nuclear magnetic resonance studies of pentacoordinated phosphorus compounds containing hexafluoroisopropoxy groups

Donald B. Denney; Dorothy Z. Denney; Philip J. Hammond; Lun Tsu Liu; Yu Pin Wang


Journal of the American Chemical Society | 1981

Structures of some condensation products of .alpha.-dicarbonyl compounds and tris(amino)phosphines in solution

Donald B. Denney; Dorothy Z. Denney; Philip J. Hammond; Kuo-Shu Tseng


ChemInform | 1981

PREPARATION AND NMR STUDIES OF TETRAALKOXYSELENURANES AND TETRAALKOXYTELLURANES

Donald B. Denney; Dorothy Z. Denney; Philip J. Hammond; Y. F. Hsu


ChemInform | 1981

SOME CAGED OXAAZAPHOSPHORANES

Donald B. Denney; Dorothy Z. Denney; Dragan Gavrilovic; Philip J. Hammond; Chialang Huang; Kuo-Shu Tseng


ChemInform | 1981

PREPARATION AND CHEMISTRY OF PENTA- AND HEXACOORDINATED PHOSPHORUS COMPOUNDS CONTAINING TRIFLUOROETHOXY GROUPS

Donald B. Denney; Dorothy Z. Denney; Philip J. Hammond; Yu Pin Wang

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