Zobrazeno 1 - 10
of 59
pro vyhledávání: '"David H. Grayson"'
Autor:
Mathias C. Eichler, David H. Grayson
Publikováno v:
ARKIVOC, Vol 2014, Iss 6, Pp 38-53 (2014)
Externí odkaz:
https://doaj.org/article/59f0cd15548148049dffa6655be29de3
Publikováno v:
ARKIVOC, Vol 2014, Iss 2, Pp 161-174 (2013)
Externí odkaz:
https://doaj.org/article/378010d9ffea4ac19c4edd7f2bd9f53e
Autor:
David H. Grayson, Stephen H. O’Donnell
Publikováno v:
ARKIVOC, Vol 2003, Iss 7, Pp 4-14 (2002)
Externí odkaz:
https://doaj.org/article/42c43bfd3cf042b289e906cda3134e26
Autor:
Jerome Fakhry, David H. Grayson
Publikováno v:
Tetrahedron. 74:556-563
Phenyl benzenethiosulfinate reacts with enolate anions derived from ketones to give α-phenylsulfinyl ketones directly, together with minor amounts of α-phenylsulfanyl ketones. These are easily separated by forming the water-soluble sodium salts of
Autor:
David H. Grayson, Mathias C. Eichler
Publikováno v:
ARKIVOC, Vol 2014, Iss 6, Pp 38-53 (2014)
Publikováno v:
Tetrahedron. 70:7241-7244
Deprotonation of diethyl (2-carboethoxy)benzylphosphonate using sodium ethoxide followed by reaction of the carbanion with furfural or aryl aldehydes gives diethyl (E)-1-(2′-carboxyphenyl)-1-phosphono-2-arylethenes that are formed via intramolecula
Autor:
Eva M. Gallagher, David H. Grayson
Publikováno v:
ARKIVOC, Vol 2014, Iss 5, Pp 420-429 (2014)
E)-3-Bromo-1-phenylsulfonylprop-1-ene and (E)-3-iodo-1-phenylsulfonylprop-1-ene both form allylic organozinc reagents that react with aromatic aldehydes to give mainly 4-aryl-4-hydroxy1-phenylsulfonylbut-1-enes. In contrast, reactions of the same org
Publikováno v:
European Journal of Organic Chemistry. 2014:3565-3569
A novel method for the synthesis of aryl-substituted guanidines in good overall yields is presented; it consists of the acidic cleavage of 2-(arylamino)-4,6-dimethoxypyrimidines, which were prepared by coupling aryl bromides with 2-amino-4,6-dimethox
Publikováno v:
Tetrahedron Letters. 56:4990-4992
The use of 2-chloro-4,6-dimethoxypyrimdine as a tool for the syntheses of substituted guanidines is presented. This method, that we had previously shown to be very useful for aromatic amines, introduces an atom economical, cost effective and environm
Autor:
David H. Grayson, Frank W. Lewis
Publikováno v:
Tetrahedron: Asymmetry. 23:643-649
Some camphor-derived vinyl sulfones bearing an oxygen functionality at the allylic position have been synthesised and their nucleophilic epoxidation reactions under Meth-Cohn conditions have been explored. The γ-oxygenated camphor-derived vinyl sulf