Structural Reevaluation of the Electrophilic Hypervalent Iodine Reagent for Trifluoromethylthiolation Supported by the Crystalline Sponge Method for X-ray Analysis

Hypervalent iodine λ[superscript 3]-benziodoxoles are common electrophilic transfer reagents known for their enhanced stability compared to their non-cyclic analogues. Herein we present data showing that chlorobenziodoxole reacts with two different thiolate nucleophiles (thiocyanate and trifluoromet...

Full description

Bibliographic Details
Main Authors: Vinogradova, Ekaterina V. (Contributor), Mueller, Peter (Contributor), Buchwald, Stephen Leffler (Contributor)
Other Authors: Massachusetts Institute of Technology. Department of Chemistry (Contributor)
Format: Article
Language:English
Published: Wiley Blackwell, 2015-11-03T13:02:06Z.
Subjects:
Online Access:Get fulltext
LEADER 01796 am a22002293u 4500
001 99674
042 |a dc 
100 1 0 |a Vinogradova, Ekaterina V.  |e author 
100 1 0 |a Massachusetts Institute of Technology. Department of Chemistry  |e contributor 
100 1 0 |a Vinogradova, Ekaterina V.  |e contributor 
100 1 0 |a Mueller, Peter  |e contributor 
100 1 0 |a Buchwald, Stephen Leffler  |e contributor 
700 1 0 |a Mueller, Peter  |e author 
700 1 0 |a Buchwald, Stephen Leffler  |e author 
245 0 0 |a Structural Reevaluation of the Electrophilic Hypervalent Iodine Reagent for Trifluoromethylthiolation Supported by the Crystalline Sponge Method for X-ray Analysis 
260 |b Wiley Blackwell,   |c 2015-11-03T13:02:06Z. 
856 |z Get fulltext  |u http://hdl.handle.net/1721.1/99674 
520 |a Hypervalent iodine λ[superscript 3]-benziodoxoles are common electrophilic transfer reagents known for their enhanced stability compared to their non-cyclic analogues. Herein we present data showing that chlorobenziodoxole reacts with two different thiolate nucleophiles (thiocyanate and trifluoromethylthiolate), resulting in the formation of stable thioperoxy complexes rather than the expected benziodoxole derivatives. We further report a revised structure for the earlier described electrophilic trifluoromethylthiolation reagent (1), which was previously believed to contain the benziodoxole framework. Our findings, which are based on a combination of analytical techniques, including the recently introduced crystalline sponge method for X-ray analysis, unambiguously demonstrate that 1 is a thioperoxy compound both in solution and the solid state. 
520 |a National Institutes of Health (U.S.) (Award GM58160) 
546 |a en_US 
655 7 |a Article 
773 |t Angewandte Chemie International Edition