Palladium-catalyzed concerted [4 + 1] cyclization of prop-2-yn-1-ones and isocyanides
نویسندگان
چکیده
منابع مشابه
4-(Prop-2-yn-1-yloxy)benzaldehyde
In the title mol-ecule, C10H8O2, all non-H atoms are essentailly coplanar (r.m.s. deviation = 0.0192 Å), indicating an effective conjugation of the carbonyl group, the benzene ring and the lone pair of the propyn-yloxy O atom. In the crystal, π-π stacking inter-actions [centroid-centroid distance = 3.5585 (15) Å] connect mol-ecules into inversion dimers which are linked by Csp-H⋯O=C hydrogen bo...
متن کاملGold-catalyzed cycloisomerization of alk-4-yn-1-ones.
Depending on the substitution pattern and the solvent, the gold-catalyzed cyclization of alk-4-yn-1-ones affords different oxygen heterocycles under mild reaction conditions. Alkynones with one substituent at C-3 undergo a 5-exo-dig cycloisomerization to substituted furans , whereas a 6-endo-dig cyclization to 4H-pyrans is observed with substrates bearing two substituents at C-3. In alcoholic s...
متن کاملCrystal structure of 4-(prop-2-yn-1-yloxy)benzonitrile
In the title compound, C10H7NO, the dihedral angle between the aromatic ring and the prop-2-yn-1-yl-oxy grouping is 9.47 (10)°. The bond lengths indicate electronic conjugation between the cyano group, the benzene ring and the propyn-yloxy oxygen atom. In the crystal, a hydrogen bond between the acetyl-enic C-H atom and the cyano nitro-gen atom link the mol-ecules into wave-like [30-1] C(11) ch...
متن کامل4-(Prop-2-yn-1-yloxy)benzene-1,2-dicarbonitrile
In the title compound, C(11)H(6)N(2)O, the complete mol-ecule is generated by the application of crystallographic twofold symmetry (the mol-ecule is disordered about this axis). The prop-2-yn-1-yl residue is slightly twisted out of the plane of the benzene ring [C-O-C-C torsion angle = 173.1 (3)°] and is orientated away from the nitrile substituents. In the crystal, supra-molecular chains along...
متن کامل3-(Prop-2-yn-1-yloxy)phthalonitrile
In the title compound, C11H6N2O {systematic name: 3-(prop-2-yn-1-yl-oxy)benzene-1,2-dicarbo-nitrile}, the 14 non-H atoms are approximately coplanar (r.m.s. deviation = 0.051 Å) with the terminal ethyne group being syn with the adjacent cyano residue. In the crystal, centrosymmetric dimers are connected by pairs of C-H⋯N inter-actions and these are linked into a supra-molecular tape parallel to ...
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ژورنال
عنوان ژورنال: Chinese Chemical Letters
سال: 2021
ISSN: 1001-8417
DOI: 10.1016/j.cclet.2020.04.041