- Synthesis of Acylborons by Ozonolysis of Alkenylboronates: Preparation of an Enantioenriched Amino Acid Acylboronate
-
A concise synthesis of acylborons was achieved by ozonolysis of alkenyl MIDA (N-methyliminodiacetic acid) boronates. This reaction exhibits excellent functional-group tolerance and is applicable to various acyl MIDA boronates and potassium acyltriflurobor
- Taguchi, Jumpei,Ikeda, Toshiki,Takahashi, Rina,Sasaki, Ikuo,Ogasawara, Yasushi,Dairi, Tohru,Kato, Naoya,Yamamoto, Yasunori,Bode, Jeffrey W.,Ito, Hajime
-
-
Read Online
- Synthesis of thioamides from thiocarboxylic acids using phosphonium-type condensing reagents
-
The synthesis of thioamides via the condensation reaction of thiocarboxylic acids with amines is described. Using 3-cyano-1,2,4-triazole as a favorable nucleophilic catalyst and 3-cyano-1,2,4-triazol-1-yl-tris(pyrrolidine-1-yl)phosphonium hexafluorophosphate (PyCTP) as a new phosphonium-type condensing reagent, thioamides are obtained selectively over amides, which can be attributed to the hardness of the phosphorus center of the condensing reagent.
- Suzuki, Ayaka,Takagi, Kazunori,Sato, Kazuki,Wada, Takeshi
-
-