ChemInform Abstract: Hypervalent Iodine Oxidative Rearrangement of Anthranilamides, Salicylamides and Some β-Substituted Amides: A New and Convenient Synthesis of 2-Benzimidazolones, 2-Benzoxazolones and Related Compounds.

ChemInform ◽  
2010 ◽  
Vol 32 (29) ◽  
pp. no-no
Author(s):  
Om Prakash ◽  
Hitesh Batra ◽  
Harpreet Kaur ◽  
Pawan K. Sharma ◽  
Vijay Sharma ◽  
...  
Keyword(s):  
Hypervalent Iodine ◽  
Oxidative Rearrangement ◽  
Convenient Synthesis ◽  
Related Compounds

Hypervalent Iodine Reagents in the Synthesis of Flavonoids and Related Compounds

2020 ◽  
Vol 24 (18) ◽  
pp. 2031-2047
Author(s):  
Rajesh Kumar ◽  
Nitya Sharma ◽  
Om Prakash
Keyword(s):  
Carbonyl Compounds ◽  
Hypervalent Iodine ◽  
Unsaturated Ketones ◽  
Oxidative Rearrangement ◽  
Iodine Compounds ◽  
Oxidative Transformations ◽  
Oxidation Of Phenols ◽  
Related Compounds

Hypervalent iodine compounds have proved to be very useful reagents to bring about various oxidative transformations including (i) α-functionalization of carbonyl compounds, (ii) oxidation of phenols, and (iii) oxidative rearrangement of ketones and α,β- unsaturated ketones. These reactions find interesting applications in the development of newer and convenient approaches for the synthesis of flavonoids. This review focuses on the use of most common three hypervalent compounds, namely iodobenzene diacetate, [hydroxy(tosyloxy)iodo]benzene, and [bis-trifluoroacetoxy(iodo)]benzene in the synthesis of cis/trans-3-hydroxyflavanones, 3-hydroxyflavones (flavonols), flavones, isoflavones and related compounds.

Synthesis of amino acids and related compounds. 6. New convenient synthesis of .alpha.-C-acylamino acids and .alpha.-amino ketones

1973 ◽  
Vol 38 (20) ◽  
pp. 3571-3575 ◽  
Author(s):  
Mamoru Suzuki ◽  
Tameo Iwasaki ◽  
Muneji Miyoshi ◽  
Kentaro Okumura ◽  
Kazuo Matsumoto
Keyword(s):  
Amino Acids ◽  
Convenient Synthesis ◽  
Related Compounds

Convenient Synthesis of Oxazolo[5,4-h]pyrrolo[4,3,2-de]quino­lones via Hypervalent Iodine Mediated Intramolecular Oxidative Cyclization

Synthesis ◽  
2017 ◽  
Vol 28 (19) ◽  
pp. 4517-4522
Author(s):  
Li-Ping Sun ◽  
Chun-Meng Wang ◽  
Sheng-Wei Yang ◽  
Kai-Xiang Tang ◽  
Tian-Hong Gao ◽  
...  
Keyword(s):  
Functional Groups ◽  
Practical Method ◽  
Oxidative Cyclization ◽  
Hypervalent Iodine ◽  
Air Atmosphere ◽  
Convenient Synthesis ◽  
Reaction Proceeds ◽  
Intramolecular Oxidative Cyclization

A convenient and practical method has been developed for the synthesis of substituted oxazolo[5,4-h]pyrrolo[4,3,2-de]quinolones via the intramolecular oxidative cyclization by using PIFA as oxidant and TMSOTf as additive in DCE under an air atmosphere. The reaction proceeds in good yields and has good functional groups tolerance.

Stereoselective Oxidative Rearrangement of Disubstituted Unactivated Alkenes Using Hypervalent Iodine(III) Reagent

2020 ◽  
Vol 85 (15) ◽  
pp. 10175-10181
Author(s):  
Chandra Bhan Pandey ◽  
Tazeen Azaz ◽  
Ram Subhawan Verma ◽  
Monika Mishra ◽  
Jawahar L. Jat ◽  
...  
Keyword(s):  
Hypervalent Iodine ◽  
Oxidative Rearrangement

scholarly journals Convenient Synthesis of 6,7,12,13-Tetrahydro-5H-Cyclohepta[2,1-b:3,4-b’]diindole Derivatives Mediated by Hypervalent Iodine (III) Reagent

Molecules ◽  
2019 ◽  
Vol 24 (5) ◽  
pp. 960 ◽  
Author(s):  
Lei Peng ◽  
Xiaofei Zhang ◽  
Chunhao Yang
Keyword(s):  
Oxidative Coupling ◽  
Biological Activities ◽  
Condensation Reaction ◽  
Large Family ◽  
Membered Ring ◽  
Hypervalent Iodine ◽  
Fischer Indole Synthesis ◽  
Convenient Synthesis ◽  
First Time ◽  
Indole Synthesis

Bisindolyl alkaloids represent a large family of natural and synthetic products that display various biological activities. Among the bisindole compounds, 6,7,12,13-tetrahydro-5H-cyclohepta[2,1-b:3,4-b’]diindoles have received little attention. Only two methods have been developed for the construction of the 6,7,12,13-tetrahydro-5H-cyclohepta[2,1-b:3,4-b’]diindole scaffold thus far, including the classical Fischer indole synthesis conducted by reacting indole-fused cycloheptanone and hydrazines, and the condensation reaction to build the seven-membered ring. Here, we report for the first time a new route to synthesize 6,7,12,13-tetrahydro-5H-cyclohepta[2,1-b:3,4-b’]diindoles through intramolecular oxidative coupling of 1,3-di(1H-indol-3-yl)propanes in the presence of PIFA, DDQ and TMSCl with moderate to excellent yields.

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