Catalytic Regioselective Sulfonylation of α-Chelatable Alcohols: Scope and Mechanistic Insight
This paper describes a convenient protocol for the regioselective sulfonylation of α-chelatable alcohols. Typically, the reaction of α-heterosubstituted alcohols with 1 equiv of p-TsCl and 1 equiv of Et3N in the presence of 2 mol % of Bu2SnO leads to rapid, regioselective, and exclusive monotosylati...
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Veröffentlicht in: | Journal of the American Chemical Society 2002-04, Vol.124 (14), p.3578-3585 |
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container_title | Journal of the American Chemical Society |
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creator | Martinelli, Michael J Vaidyanathan, Rajappa Pawlak, Joseph M Nayyar, Naresh K Dhokte, Ulhas P Doecke, Christopher W Zollars, Lisa M. H Moher, Eric D Khau, Vien Van Košmrlj, Berta |
description | This paper describes a convenient protocol for the regioselective sulfonylation of α-chelatable alcohols. Typically, the reaction of α-heterosubstituted alcohols with 1 equiv of p-TsCl and 1 equiv of Et3N in the presence of 2 mol % of Bu2SnO leads to rapid, regioselective, and exclusive monotosylation. The pK a of the amine was correlated to the reaction rate. A plausible mechanism for this reaction has been proposed on the basis of 119Sn NMR studies. |
doi_str_mv | 10.1021/ja016031r |
format | Article |
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A plausible mechanism for this reaction has been proposed on the basis of 119Sn NMR studies.</description><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>Kinetics and mechanisms</subject><subject>Organic chemistry</subject><subject>Reactivity and mechanisms</subject><issn>0002-7863</issn><issn>1520-5126</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNptkMuO0zAUQC0EYkphwQ-gbEBiEfAjjhN2Q8VjpBmB6MDWunZupi5uXOwE0R1bPocf4SP4Ely1mm5YWVc-OvfqEPKY0ReMcvZyDZTVVLB4h8yY5LSUjNd3yYxSykvV1OKMPEhpnceKN-w-OWOs5S2v6hkxCxjB70Zni09440JCj3Z037FYTr4Pw87D6MJQhL7487tcrDDPYDwW596GVfDp1d-fv4qlDVssYOiKK7QrGFzaCy-G5G5W40Nyrwef8NHxnZPPb99cL96Xlx_eXSzOL0sQqh1LY6RpGi7bfG8nKTMSe4uKiob1phNU2KqzDExrKmHrhna0EUpR7Cxt2tZYMSfPDt5tDN8mTKPeuGTRexgwTEkrJuusFxl8fgBtDClF7PU2ug3EnWZU74Pq26CZfXKUTmaD3Yk8FszA0yMAyYLvIwzWpRMnsme_dU7KA5fb4I_bf4hfda2Ekvr641K_VqKS_MuVbk9esEmvwxSH3O4_B_4Dhu-aPw</recordid><startdate>20020410</startdate><enddate>20020410</enddate><creator>Martinelli, Michael J</creator><creator>Vaidyanathan, Rajappa</creator><creator>Pawlak, Joseph M</creator><creator>Nayyar, Naresh K</creator><creator>Dhokte, Ulhas P</creator><creator>Doecke, Christopher W</creator><creator>Zollars, Lisa M. 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A plausible mechanism for this reaction has been proposed on the basis of 119Sn NMR studies.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>11929246</pmid><doi>10.1021/ja016031r</doi><tpages>8</tpages></addata></record> |
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title | Catalytic Regioselective Sulfonylation of α-Chelatable Alcohols: Scope and Mechanistic Insight |
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