1262235-64-2Relevant academic research and scientific papers
(3+2)-Cycloaddition of Donor-Acceptor Cyclopropanes with Thiocyanate: A Facile and Efficient Synthesis of 2-Amino-4,5-dihydrothiophenes
Jacob, Anu,Barkawitz, Philip,Andreev, Ivan A.,Ratmanova, Nina K.,Trushkov, Igor V.,Werz, Daniel B.
, p. 901 - 904 (2021)
An easy and efficient route to obtain 2-amino-4,5-dihydrothiophenes is presented. A formal (3+2)-cycloaddition of donor-acceptor cyclopropanes and ammonium thiocyanate catalyzed by Yb(OTf) 3delivers the desired products in good to excellent yields. A broad range of functional groups is tolerated during this process.
Thiourea participation in [3+2] cycloaddition with donor-acceptor cyclopropanes: A domino process to 2-amino-dihydrothiophenes
Xie, Ming-Sheng,Zhao, Guo-Feng,Qin, Tao,Suo, Yong-Bo,Qu, Gui-Rong,Guo, Hai-Ming
supporting information, p. 1580 - 1583 (2019/02/07)
The Yb(OTf)3-catalyzed [3+2] cycloaddition of donor-acceptor cyclopropanes with thiourea offers an efficient route to diverse 2-amino-4,5-dihydrothiophenes (up to 92% yield), in which optically active 2-amino-dihydrothiophenes can be produced f
Synthesis of functionalized dihydrothiophenes from doubly activated cyclopropanes using tetrathiomolybdate as the sulfur transfer reagent
Gopinath, Purushothaman,Chandrasekaran, Srinivasan
supporting information; experimental part, p. 700 - 703 (2011/03/20)
A number of doubly activated cyclopropanes were synthesized starting from various substituted bromosulfonium bromides in good yield. Regioselective ring-opening of cyclopropanes with tetrathiomolybdate as the sulfur transfer reagent gave dihydrothiophenes
