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Benzannulation strategies for the synthesis of carbazoles, indolocarbazoles, benzocarbazoles, and carbolines
Nitrogen-containing π-excessive aromatic heterocycles, in particular, carbazoles,
indolocarbazoles, benzocarbazoles, and carbolines have been considered the fundamental …
indolocarbazoles, benzocarbazoles, and carbolines have been considered the fundamental …
Recent Advances on Synthesis of 2H‐Chromenes, and Chromenes Fused Hetrocyclic Compounds
R Kumar Maurya, A Dey, V Kumara… - Asian Journal of …, 2024 - Wiley Online Library
Chromenes and 2H‐Chromenes are vital components of natural products, pharmaceuticals,
and agrochemicals that have captured the attention of researchers worldwide. These …
and agrochemicals that have captured the attention of researchers worldwide. These …
Diversity-Oriented Synthesis of Benzo[f][1,4]oxazepine-, 2H-Chromene-, and 1,2-Dihydroquinoline-Fused Polycyclic Nitrogen Heterocycles under Microwave …
D Rajput, D Tsering, M Karuppasamy… - The Journal of …, 2023 - ACS Publications
An efficient, diversity-oriented synthesis of oxazepino [5, 4-b] quinazolin-9-ones, 6 H-
chromeno [4, 3-b] quinolines, and dibenzo [b, h][1, 6] naphthyridines was established …
chromeno [4, 3-b] quinolines, and dibenzo [b, h][1, 6] naphthyridines was established …
Microwave-Assisted Copper (II)-Catalyzed Cascade Cyclization of 2-Propargylamino/Oxy-Arylaldehydes and O-Phenylenediamines: Access to Densely …
D Rajput, A Kumar, T Jandial… - The Journal of …, 2022 - ACS Publications
A highly efficient microwave-assisted copper (II)-catalyzed cyclization cascade was
established starting from readily accessible O/N-propargylated 2-hydroxy or 2 …
established starting from readily accessible O/N-propargylated 2-hydroxy or 2 …
Synthesis of 1,4-Dihydroquinolines and 4H-Chromenes via Organocatalytic Domino Aza/Oxa-Michael/1,6-Addition Reactions of para-Quinone Methides and Ynals
J Wang, Q Rong, L Zhao, X Pan, L Zhao… - The Journal of …, 2020 - ACS Publications
An organocatalytic domino aza/oxa-Michael/1, 6-addition reaction of ortho-tosylaminophenyl
or ortho-hydroxyphenyl-substituted para-quinone methides and ynals has been developed …
or ortho-hydroxyphenyl-substituted para-quinone methides and ynals has been developed …
Controllable Site-Selective Construction of 2- and 4-Substituted Pyrimido[1,2-b]indazole from 3-Aminoindazoles and Ynals
X Liu, J Zhou, J Lin, Z Zhang, S Wu… - The Journal of Organic …, 2021 - ACS Publications
A straightforward and novel controllable site-selective construction of 2-and 4-substituted
pyrimido [1, 2-b] indazole from 3-aminoindazoles and ynals has been developed. The high …
pyrimido [1, 2-b] indazole from 3-aminoindazoles and ynals has been developed. The high …
A Sequential Activation of Alkyne and C–H Bonds for the Tandem Cyclization and Annulation of Alkynols and Maleimides through Cooperative Sc (III) and Cp*-Free …
[4+ 2] oxidative Diels–Alder reaction of readily available alkynols with maleimide is achieved
for the rapid access of pthalimide-fused multicyclic compounds. The reaction is proposed to …
for the rapid access of pthalimide-fused multicyclic compounds. The reaction is proposed to …
Rhodium-Catalyzed Coordination-Assisted Regioselective and Migratory Three-Point Double Annulation of o-Alkenyl Phenols with Tertiary Propargyl Alcohols
A Nagireddy, R Kotipalli, JB Nanubolu… - Organic …, 2022 - ACS Publications
We disclose herein a Rh (III)-catalyzed migratory three-point double annulation of o-alkenyl
phenols with propargyl alcohols for de novo construction of naphtho furan derivatives in a …
phenols with propargyl alcohols for de novo construction of naphtho furan derivatives in a …
Hexafluoroisopropanol-Mediated Intramolecular Ring-Opening Cyclization of Indolyl-N-Tethered Epoxides: Tether-Length-Controlled Synthesis of 1,7- and 1,2-Fused …
Despite having the capability to construct benzo-fused heterocycles in complete atom
economy and high chemo-, regio-, enantio-, and diastereoselectivities, intramolecular …
economy and high chemo-, regio-, enantio-, and diastereoselectivities, intramolecular …
Carboline regioisomers based on unified synthetic approaches
ASM Arshad, MN Mordi - Advanced Synthesis & Catalysis, 2023 - Wiley Online Library
Carbolines are a prominent class of tricyclic alkaloids omnipresent in natural products and
bioactive compounds. Four different carboline regioisomers are known (α‐, β‐, γ‐, and δ …
bioactive compounds. Four different carboline regioisomers are known (α‐, β‐, γ‐, and δ …