METHOD OF OBTAINING MIXTURES OF ORGANOSILICONE-OLIGOSULPHANES
Preparation of a mixture of organosilicon oligosulfanes with a high fraction of disulfane comprises (1) reacting suspensions of finely-divided sodium with sulfur and optionally washing and drying the Na2Sx formed; and (2) reacting the Na2Sx with a triorganylsilyl(ar)alkyl halide. Preparation of a mi...
Gespeichert in:
Hauptverfasser: | , |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | |
---|---|
container_issue | |
container_start_page | |
container_title | |
container_volume | |
creator | MICHEL RUDOLF MUENZENBERG JOERG |
description | Preparation of a mixture of organosilicon oligosulfanes with a high fraction of disulfane comprises (1) reacting suspensions of finely-divided sodium with sulfur and optionally washing and drying the Na2Sx formed; and (2) reacting the Na2Sx with a triorganylsilyl(ar)alkyl halide. Preparation of a mixture of organosilicon oligosulfanes of formula (I), with a high fraction of disulfane (IA), by a 2-stage reaction comprises: (1) reacting suspensions of finely-divided sodium with sulfur in amounts corresponding to the stoichiometric amounts for Na2Sx in an inert organic solvent under inert gas at over 98 degrees C and filtering and optionally washing and drying the Na2Sx formed; and (2) reacting the resultant Na2Sx, (partly) dissolved or suspended in an organic solvent, with a triorganylsilyl(ar)alkyl halide of formula (II) and isolating the resultant (I). Z-Alk-Sx-Alk-Z (I) Z-Alk-Hal (II) Z = a triorganylsilyl group of the formula -Si(R )2R , -SiR |
format | Patent |
fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_PL332850A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>PL332850A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_PL332850A13</originalsourceid><addsrcrecordid>eNrjZLD1dQ3x8HdR8HdT8HcKcfT08_RzV_D1jAgJDXINBosGuTv6-Qd7-ng6-_u56vr7eLr7B4f6BHg4-rkG8zCwpiXmFKfyQmluBnk31xBnD93Ugvz41OKCxOTUvNSS-AAfY2MjC1MDR0NjwioAuPgpfw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>METHOD OF OBTAINING MIXTURES OF ORGANOSILICONE-OLIGOSULPHANES</title><source>esp@cenet</source><creator>MICHEL RUDOLF ; MUENZENBERG JOERG</creator><creatorcontrib>MICHEL RUDOLF ; MUENZENBERG JOERG</creatorcontrib><description>Preparation of a mixture of organosilicon oligosulfanes with a high fraction of disulfane comprises (1) reacting suspensions of finely-divided sodium with sulfur and optionally washing and drying the Na2Sx formed; and (2) reacting the Na2Sx with a triorganylsilyl(ar)alkyl halide. Preparation of a mixture of organosilicon oligosulfanes of formula (I), with a high fraction of disulfane (IA), by a 2-stage reaction comprises: (1) reacting suspensions of finely-divided sodium with sulfur in amounts corresponding to the stoichiometric amounts for Na2Sx in an inert organic solvent under inert gas at over 98 degrees C and filtering and optionally washing and drying the Na2Sx formed; and (2) reacting the resultant Na2Sx, (partly) dissolved or suspended in an organic solvent, with a triorganylsilyl(ar)alkyl halide of formula (II) and isolating the resultant (I). Z-Alk-Sx-Alk-Z (I) Z-Alk-Hal (II) Z = a triorganylsilyl group of the formula -Si(R )2R , -SiR<1)<R )2 or -Si(R )3; R = 1-6C alkyl, 5-8C cycloalkyl, benzyl or a phenyl group, optionally substituted by (m)ethyl or chlorine; R = 1-6 C alkoxy,. 5-8 C cycloalkoxy, phenoxy or benzyloxy; Alk = a divalent, saturated, 1-10C hydrocarbon group or an aralkylene group of formula (III); n = 1-4; x = 1.5-3.0; and Hal = Cl or Br.</description><edition>6</edition><language>eng</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM ; CHEMISTRY ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>1999</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19991108&DB=EPODOC&CC=PL&NR=332850A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19991108&DB=EPODOC&CC=PL&NR=332850A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MICHEL RUDOLF</creatorcontrib><creatorcontrib>MUENZENBERG JOERG</creatorcontrib><title>METHOD OF OBTAINING MIXTURES OF ORGANOSILICONE-OLIGOSULPHANES</title><description>Preparation of a mixture of organosilicon oligosulfanes with a high fraction of disulfane comprises (1) reacting suspensions of finely-divided sodium with sulfur and optionally washing and drying the Na2Sx formed; and (2) reacting the Na2Sx with a triorganylsilyl(ar)alkyl halide. Preparation of a mixture of organosilicon oligosulfanes of formula (I), with a high fraction of disulfane (IA), by a 2-stage reaction comprises: (1) reacting suspensions of finely-divided sodium with sulfur in amounts corresponding to the stoichiometric amounts for Na2Sx in an inert organic solvent under inert gas at over 98 degrees C and filtering and optionally washing and drying the Na2Sx formed; and (2) reacting the resultant Na2Sx, (partly) dissolved or suspended in an organic solvent, with a triorganylsilyl(ar)alkyl halide of formula (II) and isolating the resultant (I). Z-Alk-Sx-Alk-Z (I) Z-Alk-Hal (II) Z = a triorganylsilyl group of the formula -Si(R )2R , -SiR<1)<R )2 or -Si(R )3; R = 1-6C alkyl, 5-8C cycloalkyl, benzyl or a phenyl group, optionally substituted by (m)ethyl or chlorine; R = 1-6 C alkoxy,. 5-8 C cycloalkoxy, phenoxy or benzyloxy; Alk = a divalent, saturated, 1-10C hydrocarbon group or an aralkylene group of formula (III); n = 1-4; x = 1.5-3.0; and Hal = Cl or Br.</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM</subject><subject>CHEMISTRY</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLD1dQ3x8HdR8HdT8HcKcfT08_RzV_D1jAgJDXINBosGuTv6-Qd7-ng6-_u56vr7eLr7B4f6BHg4-rkG8zCwpiXmFKfyQmluBnk31xBnD93Ugvz41OKCxOTUvNSS-AAfY2MjC1MDR0NjwioAuPgpfw</recordid><startdate>19991108</startdate><enddate>19991108</enddate><creator>MICHEL RUDOLF</creator><creator>MUENZENBERG JOERG</creator><scope>EVB</scope></search><sort><creationdate>19991108</creationdate><title>METHOD OF OBTAINING MIXTURES OF ORGANOSILICONE-OLIGOSULPHANES</title><author>MICHEL RUDOLF ; MUENZENBERG JOERG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_PL332850A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1999</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM</topic><topic>CHEMISTRY</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>MICHEL RUDOLF</creatorcontrib><creatorcontrib>MUENZENBERG JOERG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MICHEL RUDOLF</au><au>MUENZENBERG JOERG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD OF OBTAINING MIXTURES OF ORGANOSILICONE-OLIGOSULPHANES</title><date>1999-11-08</date><risdate>1999</risdate><abstract>Preparation of a mixture of organosilicon oligosulfanes with a high fraction of disulfane comprises (1) reacting suspensions of finely-divided sodium with sulfur and optionally washing and drying the Na2Sx formed; and (2) reacting the Na2Sx with a triorganylsilyl(ar)alkyl halide. Preparation of a mixture of organosilicon oligosulfanes of formula (I), with a high fraction of disulfane (IA), by a 2-stage reaction comprises: (1) reacting suspensions of finely-divided sodium with sulfur in amounts corresponding to the stoichiometric amounts for Na2Sx in an inert organic solvent under inert gas at over 98 degrees C and filtering and optionally washing and drying the Na2Sx formed; and (2) reacting the resultant Na2Sx, (partly) dissolved or suspended in an organic solvent, with a triorganylsilyl(ar)alkyl halide of formula (II) and isolating the resultant (I). Z-Alk-Sx-Alk-Z (I) Z-Alk-Hal (II) Z = a triorganylsilyl group of the formula -Si(R )2R , -SiR<1)<R )2 or -Si(R )3; R = 1-6C alkyl, 5-8C cycloalkyl, benzyl or a phenyl group, optionally substituted by (m)ethyl or chlorine; R = 1-6 C alkoxy,. 5-8 C cycloalkoxy, phenoxy or benzyloxy; Alk = a divalent, saturated, 1-10C hydrocarbon group or an aralkylene group of formula (III); n = 1-4; x = 1.5-3.0; and Hal = Cl or Br.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
fulltext | fulltext_linktorsrc |
identifier | |
ispartof | |
issn | |
language | eng |
recordid | cdi_epo_espacenet_PL332850A1 |
source | esp@cenet |
subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY METALLURGY ORGANIC CHEMISTRY |
title | METHOD OF OBTAINING MIXTURES OF ORGANOSILICONE-OLIGOSULPHANES |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-24T11%3A55%3A54IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=MICHEL%20RUDOLF&rft.date=1999-11-08&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EPL332850A1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |