Zobrazeno 1 - 10
of 265
pro vyhledávání: '"Joseph P. Michael"'
Autor:
Robin Klintworth, Garreth L. Morgans, Stefania M. Scalzullo, Charles B. de Koning, Willem A. L. van Otterlo, Joseph P. Michael
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 17, Iss 1, Pp 2543-2552 (2021)
A wide range of N-(ethoxycarbonylmethyl)enaminones, prepared by the Eschenmoser sulfide contraction between N-(ethoxycarbonylmethyl)pyrrolidine-2-thione and various bromomethyl aryl and heteroaryl ketones, underwent cyclization in the presence of sil
Externí odkaz:
https://doaj.org/article/558c40a85b1b44bb94abcce7bcfdbec2
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 12, Iss 1, Pp 2609-2613 (2016)
The syntheses of the naturally occurring indolizidine alkaloid (±)-tashiromine and its unnatural epimer (±)-epitashiromine are demonstrated through the use of enaminone chemistry. The impact of various electron-withdrawing substituents at the C-8 p
Externí odkaz:
https://doaj.org/article/f40a7eced75b436b8e26d77b52558bad
Publikováno v:
ARKIVOC, Vol 2002, Iss 9, Pp 62-77 (2002)
Externí odkaz:
https://doaj.org/article/e35cbdce61474a2f8db3170188bb7491
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 1, Pp o51-o51 (2013)
The title compound, C13H17NO3, adopts a conformation in which the aromatic ring and the mean plane of the piperidine ring are almost perpendicular to each other [dihedral angle = 79.25 (6)°]. The presence of the carbonyl group alters the conformatio
Externí odkaz:
https://doaj.org/article/64cb090c83554757b7d4a7fcd5569551
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 1, Pp o139-o139 (2013)
The molecular structure of the title compound, C10H12O4, contains an intramolecular hydrogen bond between the phenol and acetyl substituents. In the crystal, C—H...π interactions act between the molecules in a cyclic manner to stabilize stacks of
Externí odkaz:
https://doaj.org/article/8b3210dd94a6485cbdd441f70c877c88
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 12, Pp o3306-o3306 (2012)
The asymmetric unit of the title compound, C12H10N2, which may serve as a model for mitosenes, contains two independent molecules. The conformation of the five-membered rings in both molecules is envelope, with the central CH2—CH2—CH2 C atom at t
Externí odkaz:
https://doaj.org/article/ae1ca94c3045487381143c40bd72485f
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 12, Pp o3281-o3281 (2012)
The title compound, C21H21NO, is a vinylogous amide (enaminone) produced by reaction of 1-(2-phenylprop-2-en-1-yl)pyrrolidine-2-thione with phenacyl bromide. In the molecule, the phenyl rings are twisted from the mean plane of the pyrrolidine ring by
Externí odkaz:
https://doaj.org/article/23094131dcf84243acf05f23a1375a38
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 8, Pp o2479-o2479 (2012)
The title compound, C14H16N2O3, is an NH-vinylogous amide (enaminone) produced by the reaction of 4-nitrophenacyl bromide with azepane-2-thione. The conformation about the C=C bond [1.3927 (14) Å] is Z, which allows for the formation of an intramole
Externí odkaz:
https://doaj.org/article/42e00cfb53ed47a285441af5d5e3b5eb
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 4, Pp o1202-o1202 (2012)
The enantiomerically pure title compound, C23H30O12, crystallizes in the chiral space group P212121. The O-acetylated-glucopyranoside moiety adopts a chair conformation. Numerous C—H...O interactions as well as a C—H...π interaction are present
Externí odkaz:
https://doaj.org/article/60d1bb662e574e8fa44dd1ab23ff2f51
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 1, Pp o174-o174 (2012)
The crystal strucure of the title compound, C7H9NO, displays N—H...O hydrogen bonds which link molecules related by translation along the b axis, and O—H...N and further N—H...O hydrogen bonds which link molecules related by the 21 screw axis a
Externí odkaz:
https://doaj.org/article/827630ceade644f8bc7f8f4ad45cd93f