Research output: Contribution to journal › Article › peer-review
Catalyst-free synthesis of substituted pyridin-2-yl, quinolin-2-yl, and isoquinolin-1-yl carbamates from the corresponding hetaryl ureas and alcohols. / Касаткина, Светлана Олеговна; Гейль, Кирилл Константинович; Байков, Сергей Валентинович; Боярская, Ирина Алексеевна; Боярский, Вадим Павлович.
In: Organic and Biomolecular Chemistry, Vol. 19, No. 27, 21.07.2021, p. 6059-6065.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Catalyst-free synthesis of substituted pyridin-2-yl, quinolin-2-yl, and isoquinolin-1-yl carbamates from the corresponding hetaryl ureas and alcohols
AU - Касаткина, Светлана Олеговна
AU - Гейль, Кирилл Константинович
AU - Байков, Сергей Валентинович
AU - Боярская, Ирина Алексеевна
AU - Боярский, Вадим Павлович
N1 - Publisher Copyright: © The Royal Society of Chemistry 2021.
PY - 2021/7/21
Y1 - 2021/7/21
N2 - A novel catalyst-free synthesis ofN-pyridin-2-yl,N-quinolin-2-yl, andN-isoquinolin-1-yl carbamates utilizes easily accessibleN-hetaryl ureas and alcohols. The proposed environmentally friendly technique is suitable for the good-to-high yielding synthesis of a wide range ofN-pyridin-2-yl orN-quinolin-2-yl substituted carbamates featuring electron-donating and electron-withdrawing groups in the azine rings and containing various primary, secondary, and even tertiary alkyl substituents at the oxygen atom (48-94%; 31 examples). The DFT calculation and experimental study showed that the reaction proceeds through the intermediate formation of hetaryl isocyanates. The method can be applied to obtainN-isoquinolin-1-yl carbamates, although in lower yields, and ethyl benzo[h]quinolin-2-yl carbamate has also been successfully synthesized (68%).
AB - A novel catalyst-free synthesis ofN-pyridin-2-yl,N-quinolin-2-yl, andN-isoquinolin-1-yl carbamates utilizes easily accessibleN-hetaryl ureas and alcohols. The proposed environmentally friendly technique is suitable for the good-to-high yielding synthesis of a wide range ofN-pyridin-2-yl orN-quinolin-2-yl substituted carbamates featuring electron-donating and electron-withdrawing groups in the azine rings and containing various primary, secondary, and even tertiary alkyl substituents at the oxygen atom (48-94%; 31 examples). The DFT calculation and experimental study showed that the reaction proceeds through the intermediate formation of hetaryl isocyanates. The method can be applied to obtainN-isoquinolin-1-yl carbamates, although in lower yields, and ethyl benzo[h]quinolin-2-yl carbamate has also been successfully synthesized (68%).
KW - 1,6-DIENES
KW - AMINES
KW - CARBONATES
KW - CHEMISTRY
KW - CO2
KW - DISCOVERY
KW - ENCAPSULATION
KW - INHIBITORS
KW - MONOMERS
KW - ONE-POT SYNTHESIS
UR - http://www.scopus.com/inward/record.url?scp=85110342880&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/f28756ab-2639-3922-bbf8-c33ab2aaaed3/
U2 - 10.1039/d1ob00783a
DO - 10.1039/d1ob00783a
M3 - Article
VL - 19
SP - 6059
EP - 6065
JO - Organic and Biomolecular Chemistry
JF - Organic and Biomolecular Chemistry
SN - 1477-0520
IS - 27
ER -
ID: 78908560