HUT49140A - Process for production of dialkyl-phosfits
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Process for production of dialkyl-phosfits
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Publication number
HUT49140A
HUT49140AHU27088AHU27088AHUT49140AHU T49140 AHUT49140 AHU T49140AHU 27088 AHU27088 AHU 27088AHU 27088 AHU27088 AHU 27088AHU T49140 AHUT49140 AHU T49140A
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Application filed by Chinoin Gyogyszer Es VegyeszetfiledCriticalChinoin Gyogyszer Es Vegyeszet
Priority to HU27088ApriorityCriticalpatent/HU199149B/en
Publication of HUT49140ApublicationCriticalpatent/HUT49140A/en
Publication of HU199149BpublicationCriticalpatent/HU199149B/en
Di:alkyl-phosphites are prepd. from alkanols and phosphorus-tri:chloride in 3:1 molar ratio. No acid scavenger is used but a solvent namely chloroform or di:chloro-ethane is present. A phosphorus-tri:chloride soln. is added during agitation to a soln. of alkanol at 0-40 deg.C.
HU27088A1988-01-251988-01-25Process for producing dialkylphosphites
HU199149B
(en)
Process for production of derivatives of 1,2,3,4-tetrahydro-6-substituated-4-aryl or heterocyclic 3-substituated-2-tioxoor oxo-5-piramidine-carbonic acid and esther
Process for production of 1,2,3,4-tetrahydro-6-substituated-4-aryl or heterocyclic-3-//substituated amin-carbonil//-2-tiozo or oxo-5-piramidin carbonic acids and esthers
Process for preparing unsaturated compounds useful in the treatment of cardiovascular phatological conditions containing 1,4-di-hydropiridine-3,5-dicarboxylic acid derivatives
THEOPHYLLINE-7-ACETATE OF D,L-TRANSSOBREROL WITH MUCOSECRETOLYTE-FLUIDIZING AND ANTIBRONCHOSPASTIC ACTION, A PROCESS FOR ITS PRODUCTION AND PHARMACEUTICAL PREPARATIONS.