Results 31 to 40 of about 471 (177)

Enantioselective Organocatalyzed Direct α‑Thiocyanation of Cyclic β‑Ketoesters by N‑Thiocyanato­phthalimide [PDF]

open access: yes, 2018
A new electrophilic thiocyanation reagent, N-thiocyanatophthalimide, was synthesized and applied to the first example of catalytic asymmetric electrophilic α-thiocyanation of various cyclic β-ketoesters by the bifunctional cinchona alkaloid catalysis ...
Fu-Xue Chen (2397511)   +4 more
core   +1 more source

K2S2O8-mediated regio- and stereo-selective thiocyanation of enamides with NH4SCN [PDF]

open access: yes, 2021
A direct and straightforward thiocyanation of enamides with NH4SCN under metal-free conditions has been accomplished. A variety of (E)-β-thiocyanoenamides are readily produced in a regio- and stereoselective manner.
Wang, Qiyang   +9 more
core   +1 more source

Two-step synthesized sulfonic acid functionalized imidazolium thiocyanate solid acid catalyst for thiocyanation of various electron rich arenes by metal-free method in water [PDF]

open access: yes, 2022
An eco-friendly, highly efficient, and novel sulfonic acid functionalized imidazolium thiocyanate (Imidazole-SO3H)/SCN and sulfonic acid functionalized imidazolium chloride (Imidazole-SO3H)/Cl solid acid catalyst were successfully synthesized.
Sobhan Rezayati (10870219)   +2 more
core   +1 more source

RESEARCHES ON THIOCYANATES AND ISOTHIOCYANATES. [PDF]

open access: yesJournal of the American Chemical Society, 1902
n ...
Wheeler, Henry L., Johnson, Treat B.
openaire   +5 more sources

Recent Advances in the Application of SelectfluorTMF-TEDA-BF4 as a Versatile Mediator or Catalyst in Organic Synthesis

open access: yesMolecules, 2011
SelectfluorTM F-TEDA-BF4 (1-chloromethyl-4-fluoro-1,4-diazoniabicyclo [2.2.2]octane bis(tetrafluoroborate) is not only one of the most efficient and popular reagents for electrophilic fluorination, but as a strong oxidant is also a convenient mediator or
Stojan Stavber
doaj   +1 more source

Thiocyanate and Endemic Goitre [PDF]

open access: yesNature, 1951
THE amount of thiocyanate has been determined in the blood of volunteers from Sumperk in Moravia and Roudnice in Bohemia, two districts in Czechoslovakia where the incidence of endemic goitre is high. In Sumperk, the investigations were carried out in both spring and autumn, but in Roudnice in the autumn only.
K, SILINK, L, MARSIKOVA
openaire   +2 more sources

Visible Light-Induced Thiocyanation of Enaminone C–H Bond to Access Polyfunctionalized Alkenes and Thiocyano Chromones [PDF]

open access: yes, 2019
The visible light induced C–H bond thiocyanation on the α-site of tertiary enaminones has been realized under metal-free, photocatalytic conditions in the presence of Rose Bengal, which enables the synthesis of thiocyanated alkene derivatives and ...
Yong Gao (29929)   +2 more
core   +1 more source

Electrochemical C-H thiocyanation of BODIPYs: Two birds with one stone of KSCN

open access: yesGreen Synthesis and Catalysis
An efficient electrochemical C–H thiocyanation of BODIPYs was developed by using potassium thiocyanide as the source of thiocyanation. The straightforward C–H thiocyanation protocol possesses many advantages: metal-free, oxidant-free conditions ...
Kui Liu   +6 more
doaj   +1 more source

Catalyst-Free Regioselective C‑3 Thiocyanation of Imidazopyridines [PDF]

open access: yes, 2015
A direct and straightforward approach for highly regioselective thiocyanation of imidazoheterocycles through sp2 C–H functionalization has been realized at room temperature.
Daoshan Yang (734863)   +7 more
core   +1 more source

Reaction of allene esters with Selectfluor/TMSX (X = I, Br, Cl) and Selectfluor/NH4SCN: Competing oxidative/electrophilic dihalogenation and nucleophilic/conjugate addition

open access: yesBeilstein Journal of Organic Chemistry, 2015
Reaction of benzyl and ethyl allenoates with TMSX (X = I, Br, Cl) and with NH4SCN were investigated in MeCN, DMF, and in imidazolium ionic liquids [BMIM][NTf2] and [BMIM][PF6] as solvent, in the presence and absence of Selectfluor.
A. Srinivas Reddy, Kenneth K. Laali
doaj   +1 more source

Home - About - Disclaimer - Privacy