Synthesis of (20R,25R)-cholest-5-ene-3.beta.,26-diol and the occurrence of base-catalyzed 1,5-hydride shift in a steroidal 1,5-ketol

1985 ◽  
Vol 50 (13) ◽  
pp. 2359-2365 ◽  
Author(s):  
Arthur F. Kluge ◽  
Michael L. Maddox ◽  
Leslie G. Partridge
Keyword(s):  
Hydride Shift

scholarly journals Regioselective activation of benzocyclobutenones and dienamides lead to anti-Bredt bridged-ring systems by a [4+4] cycloaddition

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jianyu Zhang ◽  
Xi Wang ◽  
Tao Xu
Keyword(s):  
Type Ii ◽  
Ring Systems ◽  
Hydride Shift

AbstractTo the best of our knowledge, bridgehead carbon benzofused-bridged ring systems have previously not been accessible to the synthetic community. Here, we describe a formal type-II [4 + 4] cycloaddition approach that provides fully sp2-carbon embedded anti-Bredt bicyclo[5.3.1] skeletons through the Rh-catalyzed C1–C8 activation of benzocyclobutenones (BCBs) and their coupling with pedant dienamides. Variously substituted dienamides have been coupled with BCBs to provide a range of complex bicyclo[5.3.1] scaffolds (>20 examples, up to 89% yield). The bridged rings were further converted to polyfused hydroquinoline-containing tetracycles via a serendipitously discovered transannular 1,5-hydride shift/Prins-like cyclization/Schmidt rearrangement cascade.

A special-salt effect upon the hydride shift during the acetolysis of cyclohexyl tosylate

1976 ◽  
Vol 41 (24) ◽  
pp. 3920-3922 ◽  
Author(s):  
M. Gillard ◽  
F. Metras ◽  
S. Tellier ◽  
J. J. Dannenberg
Keyword(s):  
Salt Effect ◽  
Hydride Shift

Synthesis of Ring-Locked Tetracyclic Dithienocyclopentapyrans and Dibenzocyclopentapyran via 1,5-Hydride Shift and Copper-Catalyzed C–O Bond Formation for Nonfullerene Acceptors

2021 ◽  
Vol 23 (5) ◽  
pp. 1692-1697
Author(s):  
Tze-Gang Hsu ◽  
Ching-Li Huang ◽  
Wen-Ching Yin ◽  
Fong-Yi Cao ◽  
Chia-Wei Wang ◽  
...  
Keyword(s):  
Bond Formation ◽  
Hydride Shift

Crystallographic studies related to the intramolecular hydride shift in exo-7-hydroxybicyclo[3.3.1]nonan-3-one

1979 ◽  
pp. 1496 ◽  
Author(s):  
Judith Murray-Rust ◽  
Peter Murray-Rust ◽  
William. C. Parker ◽  
Roy L. Tranter ◽  
C. Ian F. Watt
Keyword(s):  
Hydride Shift

Direct Hydride Shift Mechanism and Stereoselectivity of P450norConfirmed by QM/MM Calculations

2012 ◽  
Vol 116 (2) ◽  
pp. 872-885 ◽  
Author(s):  
Balázs Krámos ◽  
Dóra K. Menyhárd ◽  
Julianna Oláh
Keyword(s):  
Hydride Shift

An Interrupted [4+3] Cycloaddition Reaction: A Hydride Shift (Ene Reaction) Intervenes

2008 ◽  
Vol 120 (45) ◽  
pp. 8824-8827 ◽  
Author(s):  
Michael Harmata ◽  
Chaofeng Huang ◽  
Parham Rooshenas ◽  
Peter R. Schreiner
Keyword(s):  
Cycloaddition Reaction ◽  
Ene Reaction ◽  
Hydride Shift
Sign in / Sign up

Export Citation Format

Share Document