Research output: Contribution to journal › Article › peer-review
Diazo Strategy for Intramolecular Azirine Ring Expansion: Rh(II)-Catalyzed Synthesis of 2‑Hydroxy-3-oxo-2,3-dihydro‑1H‑pyrrole-2-carboxylates. / Занахов, Тимур Олегович; Галенко, Екатерина Евгениевна; Новиков, Михаил Сергеевич; Хлебников, Александр Феодосиевич.
In: Journal of Organic Chemistry, Vol. 87, No. 22, 18.11.2022, p. 15598-15607.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Diazo Strategy for Intramolecular Azirine Ring Expansion: Rh(II)-Catalyzed Synthesis of 2‑Hydroxy-3-oxo-2,3-dihydro‑1H‑pyrrole-2-carboxylates.
AU - Занахов, Тимур Олегович
AU - Галенко, Екатерина Евгениевна
AU - Новиков, Михаил Сергеевич
AU - Хлебников, Александр Феодосиевич
N1 - Publisher Copyright: © 2022 American Chemical Society.
PY - 2022/11/18
Y1 - 2022/11/18
N2 - A diazo strategy for the intramolecular azirine ring expansion was developed. Azirinyl-substituted diazodicarbonyl compounds, prepared from diazoacetylazirines, were converted in excellent yields to 2-hydroxy-3-oxo-2,3-dihydro-1H-pyrrole-2-carboxylates under Rh catalysis in the presence of water. According to DFT calculations, the formation of only pyrrolinone derivatives and the absence of O-H insertion products of Rh carbene into water are due to the low Gibbs free energy of the transition state for the concerted opening of the azirine ring and recyclization to pyrrolone in intermediate Rh complexes.
AB - A diazo strategy for the intramolecular azirine ring expansion was developed. Azirinyl-substituted diazodicarbonyl compounds, prepared from diazoacetylazirines, were converted in excellent yields to 2-hydroxy-3-oxo-2,3-dihydro-1H-pyrrole-2-carboxylates under Rh catalysis in the presence of water. According to DFT calculations, the formation of only pyrrolinone derivatives and the absence of O-H insertion products of Rh carbene into water are due to the low Gibbs free energy of the transition state for the concerted opening of the azirine ring and recyclization to pyrrolone in intermediate Rh complexes.
UR - http://www.scopus.com/inward/record.url?scp=85141598251&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/a062e424-c9ea-36bc-b7a0-81934f129e7f/
U2 - 10.1021/acs.joc.2c02177
DO - 10.1021/acs.joc.2c02177
M3 - Article
VL - 87
SP - 15598
EP - 15607
JO - Journal of Organic Chemistry
JF - Journal of Organic Chemistry
SN - 0022-3263
IS - 22
ER -
ID: 100120323