Diradicals

M Abe - Chemical Reviews, 2013 - ACS Publications
Open-shell molecules such as radicals, carbenes, and electronically excited-state molecules
exhibit high energies, and thus, in general, they are quite reactive. 1 The short-lived species …

Concerted reactions that produce diradicals and zwitterions: electronic, steric, conformational, and kinetic control of cycloaromatization processes

RK Mohamed, PW Peterson, IV Alabugin - Chemical Reviews, 2013 - ACS Publications
The broad utility of cyclic structures accounts for the key roles that cycle-forming reactions
play in synthetic designs. Most of these reactions can be classified as either a cyclization of …

1, 3-Dien-5-ynes: versatile building blocks for the synthesis of carbo-and heterocycles

E Aguilar, R Sanz, MA Fernandez-Rodriguez… - Chemical …, 2016 - ACS Publications
1, 3-Dien-5-ynes have been extensively used as starting materials for the synthesis of a
wide number of different carbo-and heterocycles. The aim of this review is to give an …

“Two functional groups in one package”: using both alkyne π-bonds in cascade transformations

IV Alabugin, B Gold - The Journal of Organic Chemistry, 2013 - ACS Publications
Spatial orthogonality of the two independently addressable π-systems in alkynes can be
used for the design and control of metal-free cascade transformations. Examples include …

Alkyne‐Based Syntheses of Carbo‐and Heterohelicenes

AV Gulevskaya, DI Tonkoglazova - Advanced Synthesis & …, 2022 - Wiley Online Library
Abstract [n] Helicenes are polycyclic aromatic molecules in which n ortho‐condensed
benzene or other aromatic rings give rise to helical chiral and highly conjugated structures …

(Hetero) aromatics from dienynes, enediynes and enyne–allenes

C Raviola, S Protti, D Ravelli, M Fagnoni - Chemical Society Reviews, 2016 - pubs.rsc.org
The construction of aromatic rings has become a key objective for organic chemists. While
several strategies have been developed for the functionalization of pre-formed aromatic …

Facile one-pot assembly of imidazotriazolobenzodiazepines via indium (III)-catalyzed multicomponent reactions

HH Nguyen, TA Palazzo, MJ Kurth - Organic letters, 2013 - ACS Publications
An operationally simple, one-pot multicomponent reaction has been developed for the
assembly of 9 H-benzo [f] imidazo [1, 2-d][1, 2, 3] triazolo [1, 5-a][1, 4] diazepines adorned …

Facile synthesis of iodopyridines from N-propargylic β-enaminones via iodine-mediated electrophilic cyclization

S Karabiyikoglu, Y Kelgokmen, M Zora - Tetrahedron, 2015 - Elsevier
A facile, efficient and general synthetic method for iodopyridines is described. When treated
with molecular iodine in the presence of sodium bicarbonate, N-propargylic β-enaminones …

Double carbometallation of alkynes: an efficient strategy for the construction of polycycles

Y Luo, X Pan, X Yu, J Wu - Chemical Society Reviews, 2014 - pubs.rsc.org
Cyclization reactions of alkynes, especially the double carbometallation of alkynes, have
drawn much interest from organic chemists because of their high efficiency in the …

Iodo Meyer–Schuster Rearrangement of 3-Alkoxy-2-yn-1-ols for β-Mono (Exclusively Z-Selective)-/Disubstituted α-Iodo-α, β-Unsaturated Esters

S Puri, N Thirupathi, M Sridhar Reddy - Organic Letters, 2014 - ACS Publications
We herein present the iodo Meyer–Schuster rearrangement of 3-alkoxypropargyl alcohols
for α-iodo-α, β-unsaturated esters using iodine or NIS in dichloromethane at ambient …