GB835785A - Method of making diaryl phosphites - Google Patents

Method of making diaryl phosphites

Info

Publication number
GB835785A
GB835785A GB8586/57A GB858657A GB835785A GB 835785 A GB835785 A GB 835785A GB 8586/57 A GB8586/57 A GB 8586/57A GB 858657 A GB858657 A GB 858657A GB 835785 A GB835785 A GB 835785A
Authority
GB
United Kingdom
Prior art keywords
phosphite
phosphites
cresyl
phosphorous acid
reacting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8586/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Chemical Works
Original Assignee
Victor Chemical Works
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Victor Chemical Works filed Critical Victor Chemical Works
Publication of GB835785A publication Critical patent/GB835785A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
    • C07F9/02—Phosphorus compounds
    • C07F9/06—Phosphorus compounds without P—C bonds
    • C07F9/08—Esters of oxyacids of phosphorus
    • C07F9/141—Esters of phosphorous acids
    • C07F9/145—Esters of phosphorous acids with hydroxyaryl compounds

Abstract

Diaryl phosphites are obtained by reacting at elevated temperature a triaryl phosphite and phosphorous acid. It is preferred to use two mols. of the triaryl phosphite and one mol. of phosphorous acid. Suitable reaction temperatures are between 40 DEG C. and 200 DEG C. and the reaction is usually complete in about 1 to 4 hours. Examples are given for the preparation of di-(p-cresyl) phosphite, di-(meta-cresyl) phosphite, di-(ortho-cresyl) phosphite, di-(p-chlorophenyl) phosphite, di-(p-nitrophenyl) phosphite and di-(tertiary butyl phenyl) phosphite and the invention also comprises these compounds, as well as a mixture of the three isomeric dicresyl phosphites such as is obtained by reacting a tricresyl phosphite derived from commercial cresol with phosphorous acid at elevated temperature, as new products. An example is also given for the preparation of diphenyl phosphite. The process is also applicable to the production of dialkyl, dichloroalkyl, dinitroalkyl, and dicyanoalkyl phosphites. The diaryl phosphites may be used as flameproofing agents for chlorinated wax or naphthalene and as anti-clouding agents.
GB8586/57A 1956-04-30 1957-03-15 Method of making diaryl phosphites Expired GB835785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US835785XA 1956-04-30 1956-04-30

Publications (1)

Publication Number Publication Date
GB835785A true GB835785A (en) 1960-05-25

Family

ID=22179245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8586/57A Expired GB835785A (en) 1956-04-30 1957-03-15 Method of making diaryl phosphites

Country Status (1)

Country Link
GB (1) GB835785A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012159047A1 (en) * 2011-05-19 2012-11-22 Gilead Sciences, Inc. Processes and intermediates for preparing anti-hiv agents
US10851125B2 (en) 2017-08-01 2020-12-01 Gilead Sciences, Inc. Crystalline forms of ethyl ((S)-((((2R,5R)-5-(6-amino-9H-purin-9-yl)-4-fluoro-2,5-dihydrofuran-2-yl)oxy)methyl)(phenoxy)phosphoryl(-L-alaninate

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012159047A1 (en) * 2011-05-19 2012-11-22 Gilead Sciences, Inc. Processes and intermediates for preparing anti-hiv agents
US8987437B2 (en) 2011-05-19 2015-03-24 Gilead Sciences, Inc. Processes and intermediates for preparing anti-HIV Agents
US9296779B2 (en) 2011-05-19 2016-03-29 Gilead Sciences, Inc. Processes and intermediates for preparing anti-HIV agents
US9783567B2 (en) 2011-05-19 2017-10-10 Gilead Sciences, Inc. Processes and intermediates for preparing anti-HIV agents
TWI635093B (en) * 2011-05-19 2018-09-11 基利科學股份有限公司 Processes and intermediates for preparing anti-hiv agents
US10196419B2 (en) 2011-05-19 2019-02-05 Gilead Sciences, Inc. Processes and intermediates for preparing anti-HIV agents
US10851125B2 (en) 2017-08-01 2020-12-01 Gilead Sciences, Inc. Crystalline forms of ethyl ((S)-((((2R,5R)-5-(6-amino-9H-purin-9-yl)-4-fluoro-2,5-dihydrofuran-2-yl)oxy)methyl)(phenoxy)phosphoryl(-L-alaninate

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