N-Tosylhydrazones: versatile synthons in the construction of cyclic compounds

Y Xia, J Wang - Chemical Society Reviews, 2017 - pubs.rsc.org
N-Tosylhydrazones have recently emerged as useful synthons in a variety of transition-metal-
catalyzed and transition-metal-free reactions, which affords novel methodologies for the …

Recent trends in the synthesis of carbazoles: an update

J Roy, AK Jana, D Mal - Tetrahedron, 2012 - Elsevier
The carbazole nucleus is a predominant feature of a vast array of heterocyclic compounds. It
occurs in naturally occurring alkaloids, optoelectronic materials, and anion-binding ligands …

Metathesis in the synthesis of aromatic compounds

WAL van Otterlo, CB De Koning - Chemical reviews, 2009 - ACS Publications
The importance of aromatic structures in organic chemistry can never be underestimated.
Nature uses compounds containing aromatic or heteroaromatic nuclei extensively as the …

Phenanthrenes: A promising group of plant secondary metabolites

B Tóth, J Hohmann, A Vasas - Journal of natural products, 2017 - ACS Publications
Although phenanthrenes are considered to constitute a relatively small group of natural
products, discovering new phenanthrene derivatives and evaluating their prospective …

Rhodium(II)‐Catalyzed Cyclization of Bis(N‐tosylhydrazone)s: An Efficient Approach towards Polycyclic Aromatic Compounds

Y Xia, Z Liu, Q Xiao, P Qu, R Ge, Y Zhang… - Angewandte Chemie …, 2012 - infona.pl
Ahead of the PAC: Polycyclic aromatic compounds (PACs) can be easily accessed by the
combination of Suzuki–Miyaura cross‐coupling and a [Rh 2 (OAc) 4]‐catalyzed carbene …

Recent Advances in Organocatalyst‐Mediated Benzannulation Reactions

L Wu, B Yu, EQ Li - Advanced Synthesis & Catalysis, 2020 - Wiley Online Library
Aromatic compounds are omnipresent in organic chemistry, which are the broadest
skeletons of bioactive molecules, medicines, and materials. Due to their importance …

Rhodium Enalcarbenoids: Direct Synthesis of Indoles by Rhodium (II)‐Catalyzed [4+ 2] Benzannulation of Pyrroles

SG Dawande, V Kanchupalli, J Kalepu… - Angewandte Chemie …, 2014 - Wiley Online Library
Disclosed herein is the design of an unprecedented electrophilic rhodium enalcarbenoid
which results from rhodium (II)‐catalyzed decomposition of a new class of enaldiazo …

Synthesis, Characterization, and Bipolar Transporting Behavior of a New Twisted Polycyclic Aromatic Hydrocarbon: 1′, 4′‐Diphenyl‐naphtho‐(2′. 3′: 1.2) …

Q Zhang, Y Divayana, J Xiao, Z Wang… - … A European Journal, 2010 - Wiley Online Library
Abstract An asymmetric twistacene, 1′, 4′‐diphenyl‐naphtho‐(2′. 3′: 1.2)‐pyrene‐6′‐
nitro‐7′‐methyl carboxylate (tetracene 2), was synthesized by using benzyne‐trapping …

Bismuth-catalyzed synthesis of polycyclic aromatic hydrocarbons (PAHs) with a phenanthrene backbone via cyclization and aromatization of 2-(2-arylphenyl) vinyl …

M Murai, N Hosokawa, D Roy, K Takai - Organic letters, 2014 - ACS Publications
The reaction of 2-(2-arylphenyl) vinyl ethers in the presence of a catalytic amount of bismuth
(III) triflate gave substituted phenanthrenes in excellent yields under mild reaction …

Diversity-oriented approaches to polycyclics and bioinspired molecules via the Diels–Alder strategy: Green chemistry, synthetic economy, and beyond

S Kotha, AS Chavan, D Goyal - ACS Combinatorial Science, 2015 - ACS Publications
We describe diverse approaches to various dienes and their utilization in the Diels–Alder
reaction to produce a variety of polycycles. The dienes covered here are prepared by simple …