Construction of Thienothiophene and Thienofuran Ring Systems via Ring Expansion of Difluorothiiranes Generated from Dithioesters

2021 ◽  
Author(s):  
Kohei Fuchibe ◽  
Ibuki Mukohara ◽  
Atsushi Yamada ◽  
Daisuke Miyazaki ◽  
Ryo Takayama ◽  
...  
Keyword(s):  
Ring Expansion ◽  
Ring Systems

scholarly journals Structurally diverse arene-fused ten-membered lactams accessed via hydrolytic imidazoline ring expansion

2017 ◽  
Vol 15 (14) ◽  
pp. 2906-2909 ◽  
Author(s):  
Alexander Sapegin ◽  
Angelina Osipyan ◽  
Mikhail Krasavin
Keyword(s):  
Medicinal Chemistry ◽  
Ring Expansion ◽  
Membered Ring ◽  
Synthetic Methods ◽  
Ring Systems ◽  
New Hire ◽  
Imidazoline Ring

A facile approach to hitherto unknown ten-membered ring systems via a hydrolytic imidazoline ring expansion (HIRE) is described. Medium-sized rings are scarce in the contemporary medicinal chemistry toolbox. The new HIRE strategy broadens the arsenal of synthetic methods to obtain such scaffolds.

A new preparative ring expansion for bicyclic ketones. Homoketonization of cyclopropoxide analogs

1980 ◽  
Vol 58 (23) ◽  
pp. 2730-2732 ◽  
Author(s):  
Yumiko Hoyano ◽  
Vijay Patel ◽  
J. B. Stothers
Keyword(s):  
Ring Expansion ◽  
Synthetic Method ◽  
Ring Systems ◽  
Bicyclic Ketones

Homoketonization of some readily prepared cyclopropoxides affords a new synthetic method for ring expansion of the [2.2.1] and [2.2.2] ring systems.

Tandem Ring Expansion-Cyclisation Reactions: Synthesis of the Bicyclo-[4.3.0]-Nonane and Bicyclo-[6.3.0]-Undecane Ring Systems

Synlett ◽  
1993 ◽  
Vol 1993 (08) ◽  
pp. 592-594 ◽  
Author(s):  
Kevin I. Booker-Milburn ◽  
David F. Thompson
Keyword(s):  
Ring Expansion ◽  
Ring Systems
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