Results 61 to 70 of about 49,972 (158)

STM-induced ring closure of vinylheptafulvene molecular dipole switches on Au(111). [PDF]

Nanoscale Adv, 2022
Au-Yeung KH, Kühne T, Aiboudi O, Sarkar S, Guskova O, Ryndyk DA, Heine T, Lissel F, Moresco F.   +8 more
europepmc   +1 more source

Phosphetes via Transition Metal Free Ring Closure - Taking the Proper Turn at a Thermodynamic Crossing. [PDF]

Chemistry, 2021
Roesler F, Kovács M, Bruhn C, Kelemen Z, Pietschnig R.   +4 more
europepmc   +1 more source

Efficient Buchwald-Hartwig and nitrene-mediated five-membered ring closure approaches to the total synthesis of quindoline. Unexpected direct conversion of a nitro group into a phosphazene. [PDF]

RSC Adv, 2023
Thobokholt EN, Simonetti SO, Kaufman TS, Larghi EL, Bracca ABJ.   +4 more
europepmc   +1 more source

Efficacy of endoscopic ligation with O-ring closure for prevention of bleeding after gastric endoscopic submucosal dissection under antithrombotic therapy: a prospective observational study. [PDF]

Endoscopy, 2022
Nishiyama N, Kobara H, Kobayashi N, Chiyo T, Tada N, Kozuka K, Matsui T, Yachida T, Fujihara S, Shi T, Masaki T.   +10 more
europepmc   +1 more source

Methylene Insertion into Nitrogen‐Heteroatom Single Bonds of 1,2‐Azoles via a Zinc Carbenoid: An Alternative Tool for Skeletal Editing

Advanced Science
The nitrogen‐heteroatom single bonds of 1,2‐azoles and isoxazolines underwent methylene insertion in the presence of CH2I2 (6 equiv.) and diethylzinc (3 equiv.) to produce a wide variety of the ring‐expanded six‐membered heterocycles.
Masato Tsuda, Taiki Morita, Yuto Morita, Jun Takaya, Hiroyuki Nakamura   +4 more
doaj   +1 more source

Diastereoselective, Multicomponent Synthesis of Pyrrolopyrazinoquinazolinones via a Tandem Quinazolinone Rearrangement/Intramolecular Ring Closure of Tautomeric (Z)-Benzamidines. [PDF]

Org Lett, 2021
Jaffett VA, Fitz-Henley JN, Khalifa MM, Guzei IA, Golden JE.   +4 more
europepmc   +1 more source

Real closures of commutative rings. II. [PDF]

Journal für die reine und angewandte Mathematik (Crelles Journal), 1975
openaire   +5 more sources

Ready access to 7,8-dihydroindolo[2,3-d][1]benzazepine-6(5H)-one scaffold and analogues via early-stage Fischer ring-closure reaction. [PDF]

Beilstein J Org Chem, 2022
Kuznetcova I, Bacher F, Vegh D, Chuang HY, Arion VB.   +4 more
europepmc   +1 more source

Base-promoted highly efficient synthesis of nitrile-substituted cyclopropanes via Michael-initiated ring closure. [PDF]

RSC Adv, 2022
Ye M, Xu F, Bai Y, Zhang F, Wang W, Qian Y, Chen Z.   +6 more
europepmc   +1 more source

Synthesis of dithienofurans via cascade copper catalysed dual C-S coupling and ring closure reactions under mild conditions. [PDF]

RSC Adv, 2021
Zhou L, Chen Z, Li J, Li B.
europepmc   +1 more source