99 research outputs found
Dipole moments and the structure of certain polycyclic derivatives of hexachlorocyclopentadiene
1. Six new adducts of hexachlorocyclopentadiene with substituted norbornenes were synthesized. 2. The dipole moments of 11 tetracyclic derivatives of hexachlorocyclopentadiene were measured, and the structures of some of them were determined. © 1967 Consultants Bureau
Dithiophosphorylation of paracetamol
© 2014 Pleiades Publishing, Ltd. Paracetamol smoothly reacted with 2,4-diaryl-1,3,2λ5,4λ5-dithiadiphosphetane 2,4-disulfides to give O-[4-(acetylamino)phenyl] hydrogen arylphosphonodithioates
Long-chain alkyl esters of O,O-dialkyl dithiophosphoric and thionophosphoric acids prepared on the basis of red phosphorus, elemental sulfur, alcohols, and industrial fractions of higher monoolefins
Copyright © Taylor & Francis Group, LLC. Mixtures of long chain S-alkyl O,O-dialkyl dithiophosphates, and O-alkyl O,O-dialkyl thionophosphates were obtained by the reaction of red phosphorus with elemental sulfur, alcohols, and industrial fractions of C16-C18 and C20-C26 of higher olefins in the presence of Lewis acid catalysts. The products obtained possess high anticorrosion activities toward mild steel
O,O-dialkyldithiophosphoric acids in the reactions with nonactivated α-olefins
Reactions of O,O-dialkyl dithiophosphoric acids with hexadec-1-ene, octadec-1-ene, and also 2-methylpentadec-1-ene and 2-methylheptadec-1-ene as impurities in commercial samples of hexadec-1-ene and octadec-1-ene, and pure 2-methylpent-1-ene were studied in the presence of zinc chloride and ultrasound irradiation. © 2013 Copyright Taylor and Francis Group, LLC
Dithiophosphorylation of nerol and geraniol trimethylsilyl derivatives
© 2017, Pleiades Publishing, Ltd.Reaction of tetraphosphorus decasulfide with О-(cis- and trans-3,7-dimethylocta-2,6-dien-1-yl)-trimethylsilanes affords О,О-bis(cis- and trans-3,7-dimethylocta-2,6-dien-1-yl) S-(trimethylsilyl)dithiophosphates
Dithiophosphorylation of trimethylsilyl ethers of carvacrol and thymol
© 2016, Pleiades Publishing, Ltd.Carvacrol trimethylsilyl ether when reacting with P4S10 forms S-trimethylsilyl ester of O,O-bis(5-isopropyl-2-methylphenyl)dithiophosphoric acid. The reactions of 2,4-diorganyl-1,3,2,4-dithiadiphosphetane-2,4-disulfides with carvacrol (thymol) trimethylsilyl ether yield the S-trimethylsilyl esters of the corresponding dithiophosphoric acids
Dithiophosphonation of 4-(1H-pyrrol-1-yl)phenol and 4-(1H-imidazol-1-yl)phenol
© 2015 Pleiades Publishing, Ltd. Reactions of 4-(1H-pyrrol-1-yl)phenol and 4-(1H-imidazol-1-yl)phenol with 2,4-diaryl-1,3,2λ5,4λ5- dithiadiphosphetane 2,4-disulfides gave the corresponding O-4-hetarylphenyl hydrogen arylphosphonodithioates which were converted into ammonium salts. The latter showed antimicrobial activity against Grampositive bacteria and antifungal activity against fungi of the genus Candida
Chiral Salts of Phosphorus Dithioacids Based on Quinine
© 2018, Pleiades Publishing, Ltd. Reactions of quinine with dithioacids based on (1R)-endo-(+)-fenchol, (1S)-endo-(–)-borneol, and (S)-(–)-menthol have afforded optically active quinine salts. Chiral diquinine salts have been obtained in the reactions of quinine with bisthiophosphonic acids based on triethylene glycol and resorcinol
α-d-Glucofuranose and α-d-allofuranose diacetonides and silyl ether of α-d-glucofuranose diacetonide in dithiophosphorylation reactions
© 2016 Wiley Periodicals, Inc.α-d-Glucofuranose and α-d-allofuranose diacetonides react with 2,4-diorganyl 1,3,2,4-dithiadiphosphetane-2,4-disulfides to form optically active dithiophosphonates in 78–81% yields, which are transformed into the corresponding ammonium salts in 90–97% yields by the treatment of n-hexadecylamine. The S-silyldithiophosphonate was prepared in 93% yield by the reaction of 2,4-bis(butoxyphenyl) 1,3,2,4-dithiadiphosphetane-2,4-disulfide with silyl ether of α-d-glucofuranose diacetonide. One of the salts obtained possesses antibacterial activity against Staphylococcus aureus ATCC 6538-P
The reaction of triphenylarsine oxide with ethyl Iodo-acetate leading to triphenyl (carboethoxy)methylarsonium triiodide
New data are presented for some processes accompaning "retro-Arbuzov" reaction of tertiary arsine oxides with halogen-containing reagents. Triphenyl (carboethoxy)methylarsonium triiodide 10a was obtained in the reaction of triphenylarsine oxide la with excess of ethyl iodoacetate 2a. The structure of 10a was established by X-ray single crystal diffraction. © 2004 Wiley Periodicals, Inc
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