scholarly journals A New Protocol for the in situ Generation of Aromatic, Heteroaromatic, and Unsaturated Diazo Compounds and Its Application in Catalytic and Asymmetric Epoxidation of Carbonyl Compounds. Extensive Studies to Map Out Scope and Limitations, and Rationalization of Diastereo- and Enantioselectivities.

ChemInform ◽  
2004 ◽  
Vol 35 (2) ◽  
Author(s):  
Varinder K. Aggarwal ◽  
et al. et al.
Keyword(s):  
Carbonyl Compounds ◽  
Diazo Compounds ◽  
Asymmetric Epoxidation ◽  
In Situ Generation

Hypervalent iodine catalysis for selective oxidation of Baylis–Hillman adducts via in situ generation of o-iodoxybenzoic acid (IBX) from 2-iodosobenzoic acid (IBA) in the presence of oxone

2016 ◽  
Vol 40 (12) ◽  
pp. 10300-10304 ◽  
Author(s):  
Raktani Bikshapathi ◽  
Parvathaneni Sai Prathima ◽  
Vaidya Jayathirtha Rao
Keyword(s):  
Selective Oxidation ◽  
Carbonyl Compounds ◽  
Hypervalent Iodine ◽  
In Situ Generation ◽  
Iodosobenzoic Acid ◽  
High Yields

An efficient, eco-friendly protocol for selective oxidation of primary and secondary Baylis–Hillman alcohols to the corresponding carbonyl compounds in high yields has been developed with 2-iodosobenzoic acid (IBA).

In situ generation of nitrilium from nitrile ylide and the subsequent Mumm rearrangement: copper-catalyzed synthesis of unsymmetrical diacylglycine esters

2016 ◽  
Vol 14 (45) ◽  
pp. 10723-10732 ◽  
Author(s):  
Jijun Chen ◽  
Ying Shao ◽  
Liang Ma ◽  
Meihua Ma ◽  
Xiaobing Wan
Keyword(s):  
Carboxylic Acid ◽  
Diazo Compounds ◽  
Acid Nitrile ◽  
In Situ Generation

A novel in situ generation of nitrilium from nitrile ylide and the subsequent Mumm rearrangement of carboxylic acid, nitrile, and diazo compounds gave various unsymmetrical diacylglycine esters.

In Situ Generation of Brønsted Acidity in the Pd-I Bifunctional Catalysts for Selective Reductive Etherification of Carbonyl Compounds under Mild Conditions

ACS Catalysis ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 2940-2948 ◽  
Author(s):  
Dan Wu ◽  
Willinton Y. Hernández ◽  
Songwei Zhang ◽  
Evgeny I. Vovk ◽  
Xiaohong Zhou ◽  
...  
Keyword(s):  
Carbonyl Compounds ◽  
Bifunctional Catalysts ◽  
Brønsted Acidity ◽  
Mild Conditions ◽  
Brönsted Acidity ◽  
In Situ Generation

Diastereoselective trans Cyclopropanation of 3-Alkylidene Oxindoles with In Situ Generated α-Diazo Carbonyls or α,β-Unsaturated Diazo Compounds

Synthesis ◽  
2021 ◽  
Author(s):  
Chhanda Mukhopadhyay ◽  
Sayan Pramanik ◽  
Suman Ray ◽  
Suvendu Maity ◽  
Prasanta Ghosh
Keyword(s):  
Carbonyl Compounds ◽  
Diazo Compounds ◽  
Metal Free ◽  
Diazo Carbonyl Compounds

AbstractAn efficient diastereoselective trans cyclopropanation of 3-alkylidene oxindoles with in situ generated α-diazo carbonyl compounds or α,β-unsaturated diazo compounds under metal-free conditions has been developed to synthesize 3-spirocyclopropyl-2-oxindole derivatives. The procedure is based on the 1,3-dipolar character of the corresponding diazo compounds under base-catalyzed conditions. The method has a wide substrate scope and uses easily available starting materials.

Palladium on graphene: the in situ generation of a catalyst for the chemoselective reduction of α,β-unsaturated carbonyl compounds

RSC Advances ◽  
2013 ◽  
Vol 3 (36) ◽  
pp. 15608 ◽  
Author(s):  
Naoki Morimoto ◽  
Shun-ichi Yamamoto ◽  
Yasuo Takeuchi ◽  
Yuta Nishina
Keyword(s):  
Carbonyl Compounds ◽  
In Situ Generation

Iron-catalyzed synthesis of cyclopropanes by in situ generation and decomposition of electronically diversified diazo compounds

2018 ◽  
Vol 54 (94) ◽  
pp. 13256-13259 ◽  
Author(s):  
Emmanuelle M. D. Allouche ◽  
Afnan Al-Saleh ◽  
André B. Charette
Keyword(s):  
Diazo Compounds ◽  
One Pot ◽  
Modular Synthesis ◽  
Direct Participation ◽  
In Situ Generation

The modular synthesis of a variety of trans 1,2-disubstituted cyclopropanes in a one-pot iron-catalyzed cyclopropanation is described. N-nosylhydrazones are used as diazo precursors, allowing the in situ generation of electron-rich diazo compounds and their direct participation in the reaction.

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