85706-53-2Relevant articles and documents
Enantiospecific access to various C(9),C(10)-disubstituted camphors: Scope and limitations
Martinez, Antonio Garcia,Vilar, Enrique Teso,Fraile, Amelia Garcia,De La Moya Cerero, Santiago,Morillo, Cristina Diaz,Morillo, Rocio Perez
, p. 7348 - 7351 (2004)
The valuable chiral sources C(9),C(10)-disubstituted camphors can be enantiospecifically obtained from the corresponding C(9)-substituted camphors by a general and straightforward synthetic method. This method involves the electrophilic treatment of a key
Enantiospecific Synthesis of 9,10-Dihalocamphors
Martinez, Antonio Garcia,Vilar, Enrique Teso,Fraile, Amelia Garcia,Cerero, Santiago Moya de la,Morillo, Cristina Diaz,Morillo, Rocio Perez
, p. 134 - 136 (2007/10/03)
A new, general and straightforward method for the enantiospecific synthesis of 9,10-dihalocamphors (including mixed derivatives) is reported and exemplified for the preparation of (+)-9,10-dibromocamphor (a well-known chiral intermediate) as well as (+)-9-bromo-10-chlorocamphor and (+)-9-bromo-10-iodocamphor (novel mixed dihalides). Our approach is based on a key stereocontrolled tandem electrophilic addition - Wagner-Meerwein rearrangement of optically pure 3-endo-(halomethyl)-3-methyl-2-methylenenorbornan-1-ols, which are easily obtained from readily accessible 9-halocamphors.
An enantiospecific route to C,D ring synthons for steroid synthesis
Clase, J. Andrew,Money, Thomas
, p. 1537 - 1544 (2007/10/02)
A simple enantiospecific route to a hydrindenone intermediate for steroid synthesis has been accomplished.The introduction of a wide variety of side-chain units is made possible by stereoselective alkylation of a bicyclic ester 13 derived from (+)-camphor
ENANTIOSPECIFIC SYNTHESIS OF ESTRONE
Hutchinson, John H.,Money, Thomas
, p. 1 - 6 (2007/10/02)
Efiicient cleavage of the C(1)-C(2) bond in 9,10-dibromocamphor (3) provides a chiral intermediate (5) that can be used in a new enantiospecific synthesis of estrone.
Ring cleavage of camphor derivatives: formation of chiral synthons for natural products synthesis
Hutchinson, J. H.,Money, T.,Piper, S. E.
, p. 854 - 860 (2007/10/02)
Base-promoted ring cleavage of 9,10- and 8,10-dibromocamphor provides chiral intermediates for natural product synthesis.
Synthesis of 8,10-and 9,10-disubstituted camphor derivatives
Dadson, William M.,Lam, Mayda,Money, Thomas,Piper, Susan E.
, p. 343 - 346 (2007/10/02)
Regiospecific bromination and debromination reactions have been used to provide a synthetic route from camphor to optically active 8,10- and 9,10-disubstituted camphor derivatives.