Research output: Contribution to journal › Article › peer-review
Unexpected Ring Contraction of Homophthalic Anhydrides under Diazo Transfer Conditions. / Kazantsev, Alexander; Bakulina, Olga; Dar'in, Dmitry; Kantin, Grigory; Bunev, Alexander; Krasavin, Mikhail.
In: Organic Letters, Vol. 24, No. 26, 08.07.2022, p. 4762-4765.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Unexpected Ring Contraction of Homophthalic Anhydrides under Diazo Transfer Conditions
AU - Kazantsev, Alexander
AU - Bakulina, Olga
AU - Dar'in, Dmitry
AU - Kantin, Grigory
AU - Bunev, Alexander
AU - Krasavin, Mikhail
N1 - Publisher Copyright: © 2022 American Chemical Society.
PY - 2022/7/8
Y1 - 2022/7/8
N2 - An attempted Regitz diazo transfer onto homophthalic anhydride led to the discovery of an unexpected ring contraction, which gave N-sulfonyl phthalide-3-carboxamide derivatives. The reaction is thought to proceed via a [3 + 2] cycloaddition of the substrate's enol form and the azide followed by a two-step fragmentation of the intermediate 1,2,3-triazoline with a loss of the nitrogen molecule.
AB - An attempted Regitz diazo transfer onto homophthalic anhydride led to the discovery of an unexpected ring contraction, which gave N-sulfonyl phthalide-3-carboxamide derivatives. The reaction is thought to proceed via a [3 + 2] cycloaddition of the substrate's enol form and the azide followed by a two-step fragmentation of the intermediate 1,2,3-triazoline with a loss of the nitrogen molecule.
UR - http://www.scopus.com/inward/record.url?scp=85134361177&partnerID=8YFLogxK
U2 - 10.1021/acs.orglett.2c01730
DO - 10.1021/acs.orglett.2c01730
M3 - Article
C2 - 35749721
AN - SCOPUS:85134361177
VL - 24
SP - 4762
EP - 4765
JO - Organic Letters
JF - Organic Letters
SN - 1523-7060
IS - 26
ER -
ID: 97337539