Results 51 to 60 of about 319 (90)

IBX: a novel and versatile oxidant for electrophilic thiocyanation of indoles, pyrrole and arylamines

, 2008
The direct thiocyanation of indoles and pyrrole with ammonium thiocyanate has been achieved using o-iodoxybenzoic acid (IBX) under mild and neutral conditions to produce indol-3-yl and pyrrol-2-yl thiocyanates, respectively, in excellent yields and with ...
Yadav, Jhillu S., Bala Murali Krishna, B., Subba Reddy, Basi V.   +2 more
core   +1 more source

Regioselective C‐H Thio‐ and Selenocyanation of Pyrazolo[1,5‐a]pyrimidines

Chemistry – An Asian Journal, Volume 20, Issue 9, May 2, 2025.
A metal‐free, N‐chlorosuccinimide (NCS) mediated, highly efficient, and regioselective C−H thiocyanation and C−H selenocyanation of pyrazolo[1,5‐a]pyrimidines are achieved under mild reaction conditions for the synthesis of a wide variety of 3‐thiocyanato‐ and 3‐selenocyanatopyrazolo[1,5‐a]pyrimidines in good to excellent yield up to 99 %.
Paramita Pattanayak, Harshil Khandelwal, Shreeja Basappa, Tanmay Chatterjee   +3 more
wiley   +1 more source

Oxidative trifluoromethylthiolation and thiocyanation of amines: a general approach to N–S bond formation†

, 2016
International audienceHerein, we described a practical and efficient one-pot oxidative trifluoromethylthiolation of amines. A panel of primary and secondary amines was functionalized in good yields at room temperature.
Besset, Tatiana, Pannecoucke, Xavier, Xiong, Heng-Ying   +2 more
core   +1 more source

A Visible-Light-Promoted Aerobic Metal-Free C‑3 Thiocyanation of Indoles

, 2016
A simple and efficient visible-light-promoted method for the C-3 thiocyanation of indoles has been developed. The transformation uses Rose Bengal as the photocatalyst and air as the terminal oxidant.
Qi Yang (108283), Fengshan Xu (1724626), Weigang Fan (1724623), Pixu Li (1617358)   +3 more
core   +1 more source

Emergent Strategies for Catalytic Enantioselective Direct Thiocyanation and Selenocyanation Reactions

SynOpen, 2023
Floris Buttard, Tatiana Besset
doaj   +1 more source

Thiocyanation ofN,N-Dialkylhydrazonoyl Bromides: An Entry to Sulfur-Containing 1,2,4-Triazole Derivatives

, 2017
International audienceA simple and practical one-pot protocol involving sequential C-H bromination and thiocyanation of readily available aldehyde-derived N,N-dialkylhydrazones has been established for the synthesis of 5-thioxo-1,2,4-triazolium inner ...
Alexis Prieto, Bouyssi, Didier, Monteiro, Nuno, Alexandre Uzel, Nuno Monteiro, Uzel, Alexandre, Didier Bouyssi, Prieto, Alexis   +7 more
core   +1 more source

Visible-Light-Promoted Aerobic α‑Thiocyanation of Carbonyl Compounds with Ammonium Thiocyanate

In the present study, we successfully developed an efficient thiocyanation of carbonyl compounds by using low-toxicity and inexpensive ammonium thiocyanate as the thiocyanate source under visible light in air (O2) at room temperature.
Tao Zhang (43681), Jie Liu (15128), Xiaoyu Du (3912982), Yingying Wang (124944), Yakun Wang (2028832), Liqiang Wu (649391), Haojie Song (3947795), Lizhen Fang (3855058)   +7 more
core   +1 more source

Ferric (III) chloride-promoted electrophilic thiocyanation of aromatic and heteroaromatic compounds

, 2005
Indoles, oxindoles and aromatic amino compounds undergo smooth thiocyanation with ammonium thiocyanate in the presence of anhydrous FeCl3 in dichloromethane under mild conditions to afford the corresponding 3-indolyl and 4-aryl thiocyanates, respectively,
Reddy, B. V. S., Suresh Reddy, Ch., Narsaiah, A. V., Yadav, J. S., Krishna, A. D.   +4 more
core   +1 more source

Iron (III) chloride as mild and efficient reagent for the α-thiocyanation of ketones: an expedient synthesis of α-oxo thiocyanates

, 2008
A simple and efficient method for the α-thiocyanation of ketones has been developed; anhydrous iron(III) chloride is used under mild conditions to produce α-oxo thiocyanates in good to high yields and with high selectivity.
Chary, Darshanoju N., Subba Reddy, Ummareddy V., Yadav, Jhillu S., Subba Reddy, Basi V.   +3 more
core   +1 more source

The first entry to 5,6-dihydroxy-3-mercaptoindole, 5-hydroxy-3-mercaptoindole and their 2-carbomethoxy derivatives by a mild thiocyanation/reduction methodology.

, 2007
The hitherto unknown 5,6-dihydroxy-3-mercaptoindole (4a) and its 2-carbomethoxy derivative (4b), as well as the analogous 5-hydroxy 3-mercaptoindoles, have been conveniently obtained as O,S-acetyl derivatives 3a-d by thiocyanation of the corresponding ...
A. PEZZELLA, d’Ischia, Marco, A. IADONISI, IADONISI, ALFONSO, M. D'ISCHIA, PEZZELLA, ALESSANDRO, Palma, Aniello, NAPOLITANO, ALESSANDRA, Marco d'Ischia, D'ISCHIA, MARCO, A. PALMA, Aniello Palma, Alfonso Iadonisi, Alessandra Napolitano, Alessandro Pezzella, A. NAPOLITANO   +15 more
core   +1 more source