News:

Registration doesn't require a real email.
Monero Donation Address: 897ESh4QoJgEytJueBPULziMDfNMToXkGMrvtUCJRo2NQRv2CXACHnmEzeMTkwQhnfcZsAc3ctXp6GsedhMfBv983rn5i84

Main Menu

Carroll Rearrangement: Room Temp P2P Prep?

Started by Rhodium, April 13, 2004, 09:46:00 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Rhodium

This is really frustrating... I have no idea how to aquire any more info on this exciting ACS conference abstract...

The Carroll Rearrangement: A Facile Entry Into Phenylacetone and Related Derivatives
Kirk L. Sorgi and Lorraine Scott
Department of Chemical Development, R. W. Johnson Pharmaceutical Research Institute, Spring House, PA. 19477

Abstracts of Papers of the American Chemical Society 200(2), 297-ORGN (1990)


https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000500591-carroll.gif" target="_blank" title="View this image">

Abstract
The Carroll rearrangement, a variant to the ester Claisen rearrangement, is a useful method for preparing https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000500591-file_lwwo.gif" title="View this image">,https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000500591-file_feqa.gif" title="View this image">-unsaturated ketones from allylic acetoacetates. The reaction has found limited action in synthetic organic chemistry due to the harsh thermal conditions normally needed to induce the [3,3]-sigmatropic rearrangement. While examining the chemistry involving allylic acetoacetate I, we encountered a mild (room temperature) Carroll rearrangement that afforded the phenylacetone derivative III via keto-acid II. Several examples showing the generality, scope, and limitations of the methodology will be described along with mechanistic considerations.


Carroll Rearrangement References

http://themerckindex.cambridgesoft.com/TheMerckIndex/NameReactions/ONR69.htm


http://www.chempensoftware.com/reactions/RXN045.htm


http://www.chem.ox.ac.uk/thirdyearcomputing/reactioninfo.asp?id=207%5B/sub

]


hest

Beilstein turned up with thois one.
Wessely; MOCMB7; Monatsh.Chem.; 90; 1959; 713, 718.
Iff you have it online (i don't) it might be worth a look

kurupira

ref. is Tetrahedron Letters, Vol. 36, No. 21, pp. 3597-3600, 1995.

"The Carroll Rearrangement:
A Facile Entry into Substituted Arylacetones
and Related Derivatives

Kirk L. Sorgi,* Lorraine Scott, and Cynthia A. Maryanoff
Chemical Development Department
The R. W. Johnson Pharmaceutical Research Institute
Spring House, PA 19477 USA

Abstract: Acetoacetates, easily prepared from substituted p-quinols, undergo a mild room temperature
Carroll rearrangement to afford substituted arylacetones and related derivatives in moderate to good
yields...."

Rhodium
If you want the pdf ask me by pm...


Rhodium

Thanks Kurupira! Here's the full article - It was way stranger chemistry than I imagined...

The Carroll rearrangement: A facile entry into substituted arylacetones and related derivatives
Kirk L. Sorgi, Lorraine Scott and Cynthia A. Maryanoff

Tetrahedron Letters 36(21), 3597-3600 (1995)

(https://www.thevespiary.org/rhodium/Rhodium/pdf/carroll.rearrangement.pdf)

Abstract
Acetoacetates, easily prepared from substituted p-quinols, undergo a mild room temperature Carroll rearrangement to afford substituted arylacetones and related derivatives in moderate to good yields.