Cerium (IV) Ammonium Nitrate (CAN) Mediated Reactions IV. A Highly Efficient Synthesis of N,N’-Diarylsubstituted Formamidines in Water at Ambient Temperature

AbstractStarting from readily available 2-naphthol, aldehydes, aryl and alkylamines, a variety of Betti bases were efficiently synthesized utilizing a catalytic amount of cerium (IV) ammonium nitrate (CAN) at room temperature. This protocol has advantages of high yield, mild reaction conditions, no environmental pollution, diversity of reactants and simple work up procedure.

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Efficient Synthesis of O-tert-Propargylic Oximes via Nicholas Reaction

Synthesis ◽

10.1055/s-0040-1707191 ◽

2020 ◽

Vol 52 (22) ◽

pp. 3461-3465

Author(s):

Itaru Nakamura ◽

Keigo Shiga ◽

Mao Suzuki ◽

Masahiro Terada

Keyword(s):

Ammonium Nitrate ◽

Efficient Synthesis ◽

Propargylic Alcohols ◽

Cyclic Nitrones ◽

Acidic Catalysts ◽

Nicholas Reaction ◽

High Yields ◽

Dicobalt Hexacarbonyl ◽

Cerium Iv Ammonium Nitrate

A synthetic protocol to access O-tert-propargylic oximes derived from tertiary propargylic alcohols was established via Nicholas reaction. Thus, BF3·OEt2-mediated reaction between the dicobalt hexacarbonyl complex of tert-propargylic alcohols and p-nitrobenzaldoxime followed by decomplexation with cerium(IV) ammonium nitrate afforded the corresponding O-tert-propargylic oximes in good to high yields. The obtained O-tert-propargylic oximes were effectively converted into heterocycles, such as four-membered cyclic nitrones, oxazepines, and isoxazolines, by using π-Lewis acidic catalysts.

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Copper immobilized on nano-silica triazine dendrimer (Cu(ii)-TD@nSiO2) catalyzed synthesis of symmetrical and unsymmetrical 1,3-diynes under aerobic conditions at ambient temperature

RSC Advances ◽

10.1039/c3ra47184e ◽

2014 ◽

Vol 4 (27) ◽

pp. 14291-14296 ◽

Cited By ~ 20

Author(s):

Mahboobeh Nasr-Esfahani ◽

Iraj Mohammadpoor-Baltork ◽

Ahmad Reza Khosropour ◽

Majid Moghadam ◽

Valiollah Mirkhani ◽

...

Keyword(s):

Ambient Temperature ◽

Efficient Synthesis ◽

Nano Silica ◽

Aerobic Conditions ◽

Highly Efficient

Highly efficient synthesis of symmetrical and unsymmetrical 1,3-diynes catalyzed by Cu(ii)-TD@nSiO2/DBU is reported.

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Green and Highly Efficient Synthesis of 2-Arylbenzothiazoles Using Glycerol without Catalyst at Ambient Temperature

Molecules ◽

10.3390/molecules17056011 ◽

2012 ◽

Vol 17 (5) ◽

pp. 6011-6019 ◽

Cited By ~ 27

Author(s):

Kamal Usef Sadek ◽

Ramadan Ahmed Mekheimer ◽

Afaf Mohamed Abdel Hameed ◽

Fatma Elnahas ◽

Mohamed Hilmy Elnagdi

Keyword(s):

Ambient Temperature ◽

Efficient Synthesis ◽

Highly Efficient

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Cerium(IV) ammonium nitrate catalysed facile and efficient synthesis of polyhydroquinoline derivatives through Hantzsch multicomponent condensation

Chinese Chemical Letters ◽

10.1016/j.cclet.2008.04.040 ◽

2008 ◽

Vol 19 (7) ◽

pp. 775-779 ◽

Cited By ~ 65

Author(s):

Cherkupally Sanjeeva Reddy ◽

Mekala Raghu

Keyword(s):

Ammonium Nitrate ◽

Efficient Synthesis ◽

Multicomponent Condensation ◽

Cerium Iv Ammonium Nitrate

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ChemInform Abstract: Cerium(IV) Ammonium Nitrate Catalyzed Facile and Efficient Synthesis of Polyhydroquinoline Derivatives Through Hantzsch Multicomponent Condensation.

ChemInform ◽

10.1002/chin.200849145 ◽

2008 ◽

Vol 39 (49) ◽

Author(s):

Cherkupally Sanjeeva Reddy ◽

Mekala Raghu

Keyword(s):

Ammonium Nitrate ◽

Efficient Synthesis ◽

Multicomponent Condensation ◽

Cerium Iv Ammonium Nitrate

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Green, three component highly efficient synthesis of 2-amino-5,6,7,8-tetrahydro-4-H-chromen-3-carbonitriles in water at ambient temperature

Green Chemistry Letters and Reviews ◽

10.1080/17518251003619176 ◽

2010 ◽

Vol 3 (3) ◽

pp. 161-163 ◽

Cited By ~ 11

Author(s):

Ramadan A. Mekheimer ◽

Afaf M. Abdelhameed ◽

Sawsan M. Mohamed ◽

Kamal Usef Sadek

Keyword(s):

Ambient Temperature ◽

Efficient Synthesis ◽

Highly Efficient

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Combination of Aerobic/Moisture/Ambient Temperature Compatible Organolithium Chemistry with Sustainable Solvents: Selective and Efficient Synthesis of Guanidines and Amidines

Green Chemistry ◽

10.1039/d1gc03393j ◽

2021 ◽

Author(s):

Joaquín García-Álvarez ◽

David Elorriaga ◽

Fernando Carrillo-Hermosilla ◽

Antonio Antiñolo ◽

Blanca Parra-Cadenas

Keyword(s):

Ambient Temperature ◽

Primary Amine ◽

Efficient Synthesis ◽

Acid Base ◽

Highly Efficient ◽

Lithium Amides ◽

Sustainable Solvents ◽

Organolithium Chemistry

Highly-efficient and selective fast addition of in-situ generated lithium amides [LiN(H)R] (obtained via acid-base reaction between n-BuLi and the desired primary amine) into carbodiimides (R-N=C=N-R) or nitriles (R-C≡N) has been...

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