Synthesis of heterocycles via electrophilic cyclization of alkynes containing heteroatom

B Godoi, RF Schumacher, G Zeni - Chemical Reviews, 2011 - ACS Publications
The interest in synthesizing heterocycles has always been enormous. The literature contains
a variety of synthetic approaches to the heterocycle ring structures, much of which has been …

Review on modern advances of chemical methods for the introduction of a phosphonic acid group

CS Demmer, N Krogsgaard-Larsen, L Bunch - Chemical reviews, 2011 - ACS Publications
By Nature, the phosphonic acid group (R-PO (OH) 2) is incorporated into a vast number of
structural diverse molecules, which are involved in numerous biological functions. Several …

Synthesis of Seleno‐Heterocycles via Electrophilic/Radical Cyclization of Alkyne Containing Heteroatoms

AD Sonawane, RA Sonawane… - Advanced Synthesis …, 2020 - Wiley Online Library
Abstract containing heterocyclic scaffolds by virtue of their interesting reactivities and a
broad range of applications in the medicinal and materials chemistry. This review involves …

Metal Free Sulfonylative Spirocyclization of Alkenyl and Alkynyl Amides via Insertion of Sulfur Dioxide

AM Nair, I Halder, S Khan… - Advanced Synthesis & …, 2020 - Wiley Online Library
Herein, we report an efficient synthesis of azaspiro [4, 5]‐decanes and azaspiro [4, 5]‐
trienones by the radical cascade spirocyclization of N‐benzylacrylamides or N …

Synthesis of 3-alkyl spiro [4, 5] trienones by copper-catalyzed oxidative ipso-annulation of activated alkynes with unactivated alkanes

XH Ouyang, RJ Song, B Liu, JH Li - Chemical Communications, 2016 - pubs.rsc.org
A Cu-catalyzed oxidative ipso-annulation of activated alkynes with unactivated alkanes for
the synthesis of 3-alkyl spiro [4, 5] trienones is described. This method allows the formation …

(3+ 2)-Cycloaddition of Donor–Acceptor Cyclopropanes with Selenocyanate: Synthesis of Dihydroselenophenes and Selenophenes

A Jacob, PG Jones, DB Werz - Organic Letters, 2020 - ACS Publications
We present a Lewis-acid-catalyzed (3+ 2)-cycloaddition of donor–acceptor cyclopropanes
and selenocyanate (as its tetramethylammonium salt) for the synthesis of …

Intramolecular ipso-Halocyclization of 4-(p-Unsubstituted-aryl)-1-alkynes Leading to Spiro[4,5]trienones: Scope, Application, and Mechanistic Investigations

BX Tang, YH Zhang, RJ Song, DJ Tang… - The Journal of …, 2012 - ACS Publications
A new, general method for the synthesis of spiro [4, 5] trienones is described by the
intramolecular ipso-halocyclization of 4-(p-unsubstituted-aryl)-1-alkynes. In the presence of …

Selenophene electronics

J Hollinger, D Gao, DS Seferos - Israel Journal of Chemistry, 2014 - Wiley Online Library
Substituting individual heavier (or lighter) atoms would appear to be an extremely
straightforward method of controlling the optoelectronic properties of π‐conjugated …

Metal-free spirocyclization of N-arylpropiolamides with glyoxylic acids: access to complex azaspiro-fused tricycles

AM Nair, AH Shinde, S Kumar… - Chemical Communications, 2020 - pubs.rsc.org
A metal-free oxidative cascade acylation and dearomatization of N-(p-methoxyaryl)
propiolamides was achieved via K2S2O8 mediated decarboxylation of α-oxocarboxylic …

New development of synthesis and reactivity of seleno-and tellurophenes

CRB Rhoden, G Zeni - Organic & Biomolecular Chemistry, 2011 - pubs.rsc.org
New development of synthesis and reactivity of seleno - and tellurophenes - Organic &
Biomolecular Chemistry (RSC Publishing) DOI:10.1039/C0OB00557F Royal Society of …