The Structure and Spectroscopy of α-Hydroxyphosphonates

Hudson, H. R.; Matthews, R. W.; McPartlin, Mary; Powell, Harold R.; Yusuf, R. O.; Jászay, Zsuzsa M.; Keglevich, György; Petneházy, Imre; Tőke, Lásʐló

doi:10.1080/10426509008040764

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“…15 For purposes of comparison, Nmethylcarbamoyl derivatives also are reported for related phosphonothionates in which the trichloromethyl group is replaced by t-butyl (10a) or phenyl (10b), and for dimethyl α-(N-methylcarbamoyloxy)-2,4,6-trimethylbenzylphosphonate (10c). As noted previously for α-hydroxyphosphonates, 16 the two alkoxy groups attached to phosphorus are anisochronous and give rise to separate 1 H and 13 C signals by virtue of the presence of a chiral α-carbon atom. Spectroscopy 1 H, 13 C, and 31 P nmr data for all compounds are shown in the Experimental section.…”

Section: Discussionsupporting

confidence: 62%

The Preparation and Properties of Some α-Acyloxy- and α-Carbamoyloxy-Phosphonothionates

Hudson¹,

Jászay²,

Pianka³

2003

Phosphorus, Sulfur, and Silicon and the Related Elements

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New α-acyloxy and α-carbamoyloxy derivatives of dimethyl 2,2,2trichloroethyl-phosphonothionate have been prepared, characterized, and screened for activity against free-living soil nematodes. Several of the more easily hydrolysable esters, and also the N-methylcarbamoyl derivative, were as active as the parent pesticide, dimethyl α-hydroxy-2,2,2-trichloroethylphosphonothionate, after an induction period during which the active species is assumed to be released in vivo. It is concluded that the 2,2,2-trichloroethyl group is essential for activity in compounds of these types and that the presence of the N-methylcarbamoyl group does not in itself confer activity.

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Section: Discussionsupporting

confidence: 62%

The Preparation and Properties of Some α-Acyloxy- and α-Carbamoyloxy-Phosphonothionates

Hudson¹,

Jászay²,

Pianka³

2003

Phosphorus, Sulfur, and Silicon and the Related Elements

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Recalling my memories with Professor Harry R. Hudson

Keglevich

2017

Phosphorus, Sulfur, and Silicon and the Related Elements

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for more than five decades. His research interests included organophosphorus chemistry, especially Pesters , such as vinyl phosphates, α-hydroxyphosphonates, and α-aminophosphonates. Appreciating the importance of Russian organophosphorus chemistry, he learned the Russian language, and took part in the translation of articles published in Zs. Obscs. Himii to English. The translation has been published as J. Gen. Chem. for decades. Professor Hudson was especially good at evaluating reaction mechanisms. Investigating the Perkow-Arbuzov reaction, he prepared stable neopentylphosphonium intermediates. He guided Ph.D. students, including those from developing countries, and he was open for collaboration. In this way, he made contacts with a many universities including the Budapest University of Technology and Economics. This collaboration involved Professor László Tőke, Professor Imre Petneházy, Dr. Zsuzsa Jászay and me, and, in later years, Professor Mátyás Czugler, and the joint work lasted for 35 years. Ten scientific papers were the fruit of the cooperation. 1-10 Professor Hudson himself published 132 articles and 2

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The Structure and Spectroscopy of α-Hydroxyphosphonates

Cited by 2 publications

References 1 publication

The Preparation and Properties of Some α-Acyloxy- and α-Carbamoyloxy-Phosphonothionates

The Preparation and Properties of Some α-Acyloxy- and α-Carbamoyloxy-Phosphonothionates

Recalling my memories with Professor Harry R. Hudson

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