Stereoselective Addition of α-Methylsulfenyl Benzyl Carbanions toN-Sulfinylketimines: Asymmetric Synthesis of α,α-Dibranched β-Sulfanyl Amines

2009 ◽  
Vol 74 (2) ◽  
pp. 764-772 ◽  
Author(s):  
Yolanda Arroyo ◽  
Ángela Meana ◽  
M. Ascensión Sanz-Tejedor ◽  
Inés Alonso ◽  
José L. García Ruano
Keyword(s):  
Asymmetric Synthesis ◽  
Stereoselective Addition

Asymmetric synthesis of (R,S)- and (R,R)-4-hydroxy-5-(α-substituted)-hydroxymethyl[2.2]paracyclophane and derivatives by stereoselective addition to (R)-4-hydroxy-5-formyl[2.2]paracyclophane and derivatives

1996 ◽  
Vol 7 (12) ◽  
pp. 3445-3454 ◽  
Author(s):  
Elena V Sergeeva ◽  
Valeria I Rozenberg ◽  
Evgenii V Vorontsov ◽  
Tat'yana I Danilova ◽  
Zoya A Starikova ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Stereoselective Addition

Synthetic Studies toward Tubiferal A: Asymmetric Synthesis of a Model ABC-ring Compound

Synlett ◽  
2021 ◽  
Author(s):  
Yuki Yukutake ◽  
Takahiro Hiramatsu ◽  
Ryusei Itoh ◽  
Kazutada Ikeuchi ◽  
Takahiro Suzuki ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Claisen Rearrangement ◽  
Ring System ◽  
Alkylation Reaction ◽  
Ring Model ◽  
Stereoselective Addition ◽  
Stereogenic Centers ◽  
Rearrangement Reaction ◽  
Synthetic Studies ◽  
Ab Ring

Synthetic studies on an ABC-ring model of Tubiferal A, a triterpenoid isolated from the fruit bodies of the Tubifera dimorphotheca myxomycete, are described. The stereogenic centers at the angular positions were constructed through the stereoselective addition of a C-ring allylborane followed by an Eschenmoser–Claisen rearrangement reaction prior to the formation of the AB-ring system by a double intramolecular alkylation reaction of a dichloro nitrile intermediate.

Sign in / Sign up

Export Citation Format

Share Document