Research output: Contribution to journal › Article › peer-review
α-Diazo-β-oxosulfones as Partners in the Wolff 1,2,3-Triazole Synthesis and the Wolff Rearrangement in the Presence of Aromatic Amines. / Safrygin, Alexander; Dar'in, Dmitry; Kantin, Grigory; Krasavin, Mikhail.
In: European Journal of Organic Chemistry, Vol. 2019, No. 29, 07.08.2019, p. 4721-4724.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - α-Diazo-β-oxosulfones as Partners in the Wolff 1,2,3-Triazole Synthesis and the Wolff Rearrangement in the Presence of Aromatic Amines
AU - Safrygin, Alexander
AU - Dar'in, Dmitry
AU - Kantin, Grigory
AU - Krasavin, Mikhail
PY - 2019/8/7
Y1 - 2019/8/7
N2 - The readily available α-diazo-β-oxosulfones have been employed, for the first time, in the Wolff cyclocondensation with aromatic amines promoted by 1.5-fold excess of TiCl4. The reaction was found to be general (as illustrated by 15 product examples) and resulted in moderate yields of medicinally relevant sulfonyl 1,2,3-triazoles. Excluding the Lewis acid promoter resulted in a clean and high-yielding formation of α-sulfonyl acetanilides resulting from the thermal Wolff rearrangement and trapping of the ketene intermediate with an aniline molecule.
AB - The readily available α-diazo-β-oxosulfones have been employed, for the first time, in the Wolff cyclocondensation with aromatic amines promoted by 1.5-fold excess of TiCl4. The reaction was found to be general (as illustrated by 15 product examples) and resulted in moderate yields of medicinally relevant sulfonyl 1,2,3-triazoles. Excluding the Lewis acid promoter resulted in a clean and high-yielding formation of α-sulfonyl acetanilides resulting from the thermal Wolff rearrangement and trapping of the ketene intermediate with an aniline molecule.
KW - Triazoles
KW - Wolff cyclocondensation
KW - Wolff rearrangement
KW - α-Diazo-β-oxosulfones
KW - α-Sulfonyl acetanilides
KW - alpha-Sulfonyl acetanilides
KW - alpha-Diazo-beta-oxosulfones
KW - CYCLOCONDENSATION
UR - http://www.scopus.com/inward/record.url?scp=85069850997&partnerID=8YFLogxK
U2 - 10.1002/ejoc.201900698
DO - 10.1002/ejoc.201900698
M3 - Article
AN - SCOPUS:85069850997
VL - 2019
SP - 4721
EP - 4724
JO - European Journal of Organic Chemistry
JF - European Journal of Organic Chemistry
SN - 1434-193X
IS - 29
ER -
ID: 46203920