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Phosphoric and phosphinic sulfonic anhydrides – reinvestigation and corrections. Novel methods of synthesis

✍ Scribed by Dabkowski, Wojciech ;Michalski, Jan ;Radziejewski, Czeslaw ;Skrzypczyński, Zbigniew

Publisher
Wiley (John Wiley & Sons)
Year
1982
Tongue
English
Weight
414 KB
Volume
115
Category
Article
ISSN
0009-2940

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✦ Synopsis

Earlier works from this and other laboratories on phosphoric and phosphinic sulfonic anhydrides have been reinvestigated. It was found that no single reaction described in the past provides a general method for the production of mixed anhydrides RR'P(O)SO,R" (3) in high yields of isolated products. The following three efficient synthetic procedures leading to pure anhydrides 3 are described: a) Trifluoromethanesulfonic acid promoted reaction of phosphinic acid 9 with sulfonic triazolides 10. b) Reaction of phosphinic and phosphoric imidazolides 13 with sulfonic acid 6. c) Reaction of 13 with sulfonic anhydride 15. All methods result in high yields. Some chemical properties of the anhydrides 3 are described.

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