Recent developments in indole ring synthesis—methodology and applications

GW Gribble - Journal of the Chemical Society, Perkin Transactions 1, 2000 - pubs.rsc.org
1 Introduction 2 Sigmatropic rearrangements 2.1 Fischer indole synthesis 2.1. 1
Methodology 2.1. 2 Applications 2.1. 3 Mechanism 2.2 Gassman indole synthesis 2.3 Bartoli …

Recent developments of ketene dithioacetal chemistry

L Pan, X Bi, Q Liu - Chemical Society Reviews, 2013 - pubs.rsc.org
Ketene dithioacetals are versatile intermediates in organic synthesis. Extensive research,
since the last decade, has given rise to new prospects in their chemistry. The objective of …

Product class 13: Indole and its derivatives

JA Joule - Fused five-membered hetarenes with one …, 2001 - thieme-connect.com
The word indole is derived from the word India: indigo (3), the blue dye, was first exported
from India to Europe in the 16th century. Indoles are generally crystalline colorless solids …

Heteroaromatic Annulation of 2-Methyl/2-Cyanomethylbenzimidazole Dianions with α-Oxoketene Dithioacetals: A Highly Regioselective Synthetic Protocol for 1,2- and 2,3 …

K Panda, JR Suresh, H Ila… - The Journal of Organic …, 2003 - ACS Publications
A highly efficient and regioselective annulation protocol for a series of linearly 2, 3-and
angularly 1, 2-substituted and annulated pyrido [1, 2-a] benzimidazoles involving [3+ 3] …

Studies on regioselective addition of benzylic organometallics to α-oxoketene dithioacetals in our aromatic annelation protocol

H Ila, H Junjappa, O Barun - Journal of Organometallic Chemistry, 2001 - Elsevier
The α-oxoketene dithioacetals derived from various acyclic and cyclic active methylene
ketones are shown to undergo either 1, 2-or sequential 1, 4-and 1, 2-addition with various …

α-Oxoketene dithioacetals mediated heteroaromatic annulation protocol for benzoheterocycles: an efficient regiocontrolled synthesis of highly substituted and …

S Peruncheralathan, TA Khan, H Ila, H Junjappa - Tetrahedron, 2004 - Elsevier
An efficient regiocontrolled synthesis of highly substituted and annulated indazoles involving
base induced addition–elimination of 1, 3-diphenyl-5-cyanomethylpyrazole to a variety of …

A new regiospecific method for the synthesis of substituted phenanthridines and benzo [j] phenanthridines via aromatic annelation of 1-N-benzenesulfonyl-3-[bis …

PK Patra, JR Suresh, H Ila, H Junjappa - Tetrahedron, 1998 - Elsevier
A new efficient method for the synthesis of substituted phenanthridines, benzo [j]
phenanthridines and naphtho [2, 1-j] phenanthridines is described. The method involves …

Benzannulation of 3-substituted pyrroles to indoles

AR Katritzky, S Ledoux, SK Nair - The Journal of Organic …, 2003 - ACS Publications
Benzannulation of 3-Substituted Pyrroles to Indoles | The Journal of Organic Chemistry
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Benzoannelation of 2-methylindole via 1-N-carboxy-2-methylindole dianion: a direct regiospecific route to substituted and annelated carbazoles

UKS Kumar, PK Patra, H Ila, H Junjappa - Tetrahedron letters, 1998 - Elsevier
Benzoannelation of 2-methylindole via 1-N-carboxy-2-methylindole dianion: A direct
regiospecific route to substituted and annelated carbazoles - ScienceDirect Skip to main …

α-Oxoketene Dithioacetals Mediated Benzoannelation of Aromatic Heterocycles: an Efficient Regiocontrolled Synthesis of Highly Substituted and Polycyclic Benzo [b] …

JR Suresh, O Barun, H Ila, H Junjappa - Tetrahedron, 2000 - Elsevier
An efficient regiocontrolled synthesis of highly substituted and complex polycyclic benzo [b]
thiophenes has been developed via our benzoannelation strategy involving conjugate …