DABCO-catalyzed ring opening of activated cyclopropanes and recyclization leading to γ-lactams with an all-carbon quaternary center

2014 ◽  
Vol 50 (72) ◽  
pp. 10491-10494 ◽  
Author(s):  
Shaoxia Lin ◽  
Ling Li ◽  
Fushun Liang ◽  
Qun Liu
Keyword(s):  
Efficient Method ◽  
Ring Opening ◽  
Quaternary Center

A novel and efficient method for the construction of γ-lactams with an all-carbon quaternary center is developed via a DABCO-catalyzed reaction of EWG-activated cyclopropanecarboxamides and electron-deficient alkenes.

An efficient method for the ring opening of epoxides with aromatic amines by Sb(III) chloride under microwave irradiation

2008 ◽  
Vol 2008 (4) ◽  
pp. 220-221 ◽  
Author(s):  
Dadkhoda Ghazanfari ◽  
Mohammed M. Hashemi ◽  
Mohammad Mehdi Mottaghi ◽  
Mohammad Mehdi Foroughi
Keyword(s):  
Microwave Irradiation ◽  
Efficient Method ◽  
Aromatic Amines ◽  
Ring Opening ◽  
Ring Opening Of Epoxides

scholarly journals Desymmetrization of cyclic 1,3-diketones via Ir-catalyzed hydrogenation: an efficient approach to cyclic hydroxy ketones with a chiral quaternary carbon

2019 ◽  
Vol 10 (25) ◽  
pp. 6350-6353 ◽  
Author(s):  
Quan Gong ◽  
Jialin Wen ◽  
Xumu Zhang
Keyword(s):  
Efficient Method ◽  
Quaternary Carbon ◽  
Efficient Approach ◽  
Quaternary Center ◽  
Hydroxy Ketones

We herein report an efficient method to synthesize cyclic hydroxy ketones with a chiral quaternary center.

A silver-catalyzed radical ring-opening reaction of cyclopropanols with sulfonyl oxime ethers

2020 ◽  
Vol 18 (19) ◽  
pp. 3734-3739 ◽  
Author(s):  
Xiaobao Zeng ◽  
Xin Wang ◽  
Yanan Zhang ◽  
Li Zhu ◽  
Yu Zhao
Keyword(s):  
Efficient Method ◽  
Ring Opening ◽  
Radical Ring ◽  
Ring Opening Reaction

A simple and efficient method for the radical ring-opening reaction of cyclopropanols with sulfonyl oxime ethers catalyzed by AgNO3 is developed, affording γ-keto oxime ethers in moderate to good yields.

Efficient method for ring opening of epoxides with amines by NaY zeolite under solvent-free conditions

2007 ◽  
Vol 264 (1-2) ◽  
pp. 162-169 ◽  
Author(s):  
Rukhsana Ilyas Kureshy ◽  
Surendra Singh ◽  
Noor-ul Hasan Khan ◽  
Sayed Hasan Razi Abdi ◽  
Eringathodi Suresh ◽  
...  
Keyword(s):  
Efficient Method ◽  
Ring Opening ◽  
Solvent Free ◽  
Nay Zeolite ◽  
Solvent Free Conditions ◽  
Ring Opening Of Epoxides

An efficient method for the ring opening of epoxides with aromatic amines catalysed by indium trichloride

2001 ◽  
Vol 25 (2) ◽  
pp. 221-222 ◽  
Author(s):  
L. Rajender Reddy ◽  
M. Arjun Reddy ◽  
N. Bhanumathi ◽  
K. Rama Rao
Keyword(s):  
Efficient Method ◽  
Aromatic Amines ◽  
Ring Opening ◽  
Ring Opening Of Epoxides

scholarly journals A Mild and Efficient Method for the Syntheses and Regioselective Ring-Opening of Aziridines

SynOpen ◽  
2017 ◽  
Vol 01 (01) ◽  
pp. 0015-0023 ◽  
Author(s):  
Nirnita Ghosal ◽  
Sachinta Mahato ◽  
Rana Chatterjee ◽  
Sougata Santra ◽  
Grigory Zyryanov ◽  
...  
Keyword(s):  
Efficient Method ◽  
Ring Opening ◽  
Synthetic Method ◽  
Chloramine T ◽  
Nucleophilic Ring Opening

We have developed a new synthetic method for the synthesis of aziridines using Chloramine-T as an effective reagent in the presence of NH2OH·HCl and NaIO4. We found that the same combination of NH2OH·HCl and NaIO4 is also very effective for nucleophilic ring opening of aziridines.

Hydrogenolysis of N-protected aminooxetanes over palladium: An efficient method for a one-step ring opening and debenzylation reaction

2011 ◽  
Vol 339 (1-2) ◽  
pp. 32-36 ◽  
Author(s):  
Ervin Kovács ◽  
Angelika Thurner ◽  
Ferenc Farkas ◽  
Ferenc Faigl ◽  
László Hegedűs
Keyword(s):  
Efficient Method ◽  
Ring Opening ◽  
One Step
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