1499-21-4Relevant articles and documents
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Sosnovsky,Rawlinson
, p. 2325,2328 (1968)
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Vicentini,Braga
, p. 2959,2961 (1971)
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Hunt,Saunders
, p. 2413 (1957)
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High performance liquid phase continuous automatic production and co-production technology of organic phosphine compound
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Paragraph 0070-0076, (2021/05/12)
The invention relates to the field of photocuring functional new material chemicals, and discloses a high performance liquid phase streamline type continuous automatic production technology of an acylphosphine oxide organic phosphine compound for the first time, which not only can produce a single specific target product, but also can co-produce a product mixture of two or more than two of the products of the type. The process technology has outstanding low-cost economic competitiveness and environment-friendly characteristics for large-scale manufacturing of target products. The target product comprises sym-trimethylbenzoyl diphenyl phosphine oxide (also known as 2, 4, 6-trimethylbenzoyl diphenyl phosphine oxide, trade name TPO), sym-trimethylbenzoyl phenyl ethyl phosphonate (trade name TPO-L) and structural analogues thereof, and a mixture of the sym-trimethylbenzoyl diphenyl phosphine oxide and the sym-trimethylbenzoyl phenyl ethyl phosphonate. The organic phosphine compound is an olefinic bond-containing (C=C) unsaturated radiation polymerization system photoinitiator and/or flame retardant and the like with wide application.
Extraction Properties of Diphenylposphorylureas with Aliphatic ω-Nitrogen-Containing Substituents
Baulina, T. V.,Borisova, N. E.,Brel’, V. K.,Goryunov, E. I.,Goryunova, I. B.,Lizunov, A. V.,Safiulina, A. M.
, p. 731 - 739 (2021/06/01)
Abstract: Extraction of lanthanides and actinides from nitric acid solutions with N-(diphenylphosphoryl)-N'-n-propylureas containing imidazolyl, diethylamino, pyrid-2-yl, 2-oxopyrrolidino fragments in the ω position of the alkyl substituent has been studied. It has been shown that Ho(III) and Yb(III) related to the yttrium subgroup of lanthanides are extracted much better than La(III) and Nd(III) related to the cerium subgroup. N-(Diphenylphosphoryl)urea containing ω-(2-oxopyrrolidino)propyl fragment at the terminal nitrogen atom shows the best extraction properties. This dependence has been theoretically explained by modeling complexation because the coordination of f-block element ion with amide oxygen atom is more preferable