Incorporation of the pentafluorosulfanyl group through common synthetic transformations

2021 ◽  
Vol 152 (4) ◽  
pp. 449-459
Author(s):  
Hugh G. Hiscocks ◽  
Dylan Lee Yit ◽  
Giancarlo Pascali ◽  
Alison T. Ung
Keyword(s):  
Synthetic Transformations

Oxidative Halogenation of Arenes, Olefins and Alkynes Mediated by Iodine(III) Reagents

2020 ◽  
Vol 17 ◽  
Author(s):  
Luis A. Segura-Quezada ◽  
Karina R. Torres-Carbajal ◽  
Yuvraj Satkar ◽  
Kevin A. Juárez Ornelas ◽  
Narendra Mali ◽  
...  
Keyword(s):  
Functional Groups ◽  
Oxidative Reactions ◽  
Recent Advances ◽  
Oxidative Halogenation ◽  
Synthetic Transformations

: Iodine(III)-based reagents has been broadly used in oxidative reactions for the structural functionalization with several functional groups. Among the more relevant and useful synthetic transformations using these hypervalent γ 3 -reagents, it can be found the fluorination, chlorination, bromination as well as the iodination protocols. Herein, we present some of the most representatives oxidative halogenation procedures of arenes, olefins and alkynes dating from the oldest to the more recent advances in the area, highlighting the discovery and application of new iodine(III)-based halogenating species.

Some novel synthetic transformations in adamaktanes

1975 ◽  
Vol 16 (16) ◽  
pp. 1353-1356 ◽  
Author(s):  
E.N. Cain ◽  
L.L. Welling
Keyword(s):  
Synthetic Transformations

Organophosphane-Catalyzed Construction of Functionalized 2-Ylideneoxindoles via Direct β-Acylation

Synthesis ◽  
2021 ◽  
Author(s):  
Wey-Chyng Jeng ◽  
Po-Chung Chien ◽  
Sandip Sambhaji Vagh ◽  
Athukuri Edukondalu ◽  
Wenwei Lin
Keyword(s):  
Intramolecular Cyclization ◽  
Efficient Method ◽  
Bond Cleavage ◽  
Scale Up ◽  
Acyl Chlorides ◽  
Metal Free ◽  
Mild Conditions ◽  
Synthetic Utility ◽  
Mechanistic Investigations ◽  
Synthetic Transformations

We report an efficient method for the direct β-acylation of 2-ylideneoxindoles with acyl chlorides in the presence of base-catalyzed by organophosphanes. A variety of functionalized 2-ylideneoxindoles were prepared in moderate to good yields under metal-free and mild conditions via a tandem phospha-Michael/O-acylation/intramolecular cyclization/ rearrangement sequence. The mechanistic investigations revealed that the C-O bond cleavage on possible betaine intermediate is the key step for the installation of keto-functionality at β-position of 2-ylideneoxindoles in a highly stereospecific manner. The synthetic utility of this protocol could also be proven by scale-up reactions and synthetic transformations of the products.

ChemInform Abstract: (Dialkoxymethyl)lithiums: Generation, Stability, and Synthetic Transformations.

ChemInform ◽  
1989 ◽  
Vol 20 (23) ◽  
Author(s):  
C. S. SHINER ◽  
T. TSUNODA ◽  
B. A. GOODMAN ◽  
S. INGHAM ◽  
S. LEE ◽  
...  
Keyword(s):  
Synthetic Transformations

Synthetic transformations of higher terpenoids: XXIX. Gold catalyzed cycloisomerization of propargylaminomethyl substituted and propargyloxymethyl substituted furanolabdanoids

2012 ◽  
Vol 48 (8) ◽  
pp. 1081-1089 ◽  
Author(s):  
Yu. V. Kharitonov ◽  
E. E. Shults ◽  
M. M. Shakirov ◽  
I. Yu. Bagryanskaya ◽  
G. A. Tolstikov
Keyword(s):  
Synthetic Transformations
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