tert-Butyl 2-Amino-3-cyano-5-oxo-4-phenyl-5,7-dihydropyrano[2,3-c]pyrrole-6(4H)-carboxylate
نویسندگان
چکیده
Organocatalyzed synthesis of tert-butyl 2-amino-3-cyano-5-oxo-4-phenyl-5,7-dihydropyrano[2,3-c]pyrrole-6(4H)-carboxylate, prepared from Boc-tetramic acid and benzylidenemalononitrile, is disclosed. Two bifunctional noncovalent organocatalysts were employed, yielding the product as a racemic mixture in both cases. The structure new synthesized compound was confirmed by high resolution mass-spectrometry, 1H- 13C-NMR, HSQC, IR spectroscopy.
منابع مشابه
tert-Butyl 6-amino-5-cyano-2-(2-methoxyethyl)nicotinate
The title compound, C(14)H(19)N(3)O(3), was synthesized by the reaction of 3-meth-oxy-propionitrile, tert-butyl bromo-acetate and eth-oxy-methyl-enemalononitrile. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into chains propagating along the b axis.
متن کاملtert - Butyl 3 - ( 4 - Cyano - 5 - phenylisothiazol - 3 - yl ) carbazate
3-Iodo-5-phenylisothiazole-4-carbonitrile 1 reacts with tert-butyl carbazate via a Buchwald C-N style coupling to afford tert-butyl 3-(4-cyano-5-phenylisothiazol-3-yl)carbazate 2 in 70% yield.
متن کاملtert-Butyl 4-isopropyl-2-oxo-6-phenyl-3,4-dihydro-2H-pyran-3-carboxylate
In the title compound, C(19)H(24)O(4), the six-membered lactone ring adopts an envelope conformation with the tert-butoxy-carbonyl and isopropyl substituents in axial positions, and the phenyl group in an equatorial position. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers.
متن کامل2-Amino-4-tert-butyl-5-(4-chlorobenzyl)thiazole
In the title compound, C(14)H(17)ClN(2)S, the dihedral angle between the planes of the thia-zole and chloro-phenyl rings is 88.86 (3)°. In the crystal, inversion dimers occur, linked by pairs of N-H⋯N hydrogen bonds.
متن کامل2-Amino-4-tert-butyl-5-(4-chlorobenzyl)thiazol-3-ium chloride
The title compound, C(14)H(18)ClN(2)S(+)·Cl(-), crystallizes with two formula units in the asymmetric unit. The dihedral angles between the mean planes of the chloro-phenyl and thia-zole rings are 87.8 (2) and 88.0 (2)° in the two independent mol-ecules. In the crystal, the anions and cations are connected by N-H⋯Cl hydrogen bonds.
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ژورنال
عنوان ژورنال: Molbank
سال: 2023
ISSN: ['1422-8599']
DOI: https://doi.org/10.3390/m1575