In the title compound, C(21)H(26)N(2)O(3), the morpholine ring has a chair conformation and the dihedral angle between the two phenyl rings is 59.0 (3)°. The crystal packing is stabilized by inter-molecular O-H⋯O hydrogen bonds, generating a ribbon structure along the a axis. An intra-molecular N-H⋯O contact is also present.

In the title mol-ecule, C(14)H(22)N(6)O(4), the amide-substituted N atoms of the tetra-zine ring deviate from the approximate plane of the four other atoms in the ring by 0.160 (2) and 0.243 (2) Å, forming a slight boat conformation. The morpholine rings are in chair conformations.

Azomethine ylides are accessed under mild conditions via benzoic acid catalyzed condensations of 1,2,3,4-tetrahydroisoquinolines or tryptolines with aldehydes bearing a pendent dipolarophile. These intermediates undergo intramolecular [3 + 2]-cycloadditions in a highly diastereoselective fashion to form polycyclic amines with four new stereogenic centers. Challenging substrates such as piperidi...

In the title compound, C(21)H(20)ClNO(2), the dihedral angle between the naphthyl-ene ring system and the phenyl ring is 77.86 (15)°. The morpholine ring adopts a chair conformation. The hydroxyl group is involved in intra-molecular O-H⋯N hydrogen bonding. A weak inter-molecular C-H⋯π inter-action is present in the crystal structure.

In the title complex, [ZnBr(2)(C(13)H(19)N(3)O)], the Zn(II) atom is five-coordinated by the three N-donor atoms of the Schiff base ligand and by two Br atoms in a distorted square-pyramidal geometry. The morpholine ring adopts a chair conformation.

Benzylcyanide and 4-nitrobenzylcyanide condensed with triethyl orthoformate and piperidine or morpholine to yield 2-aryl-2-piperidinyl or 2-morpholinylacrylonitriles. These coupled with aromatic diazonium salts to yield the 2-arylhydrazno-2-arylethane nitriles in good yields. The latter were converted into 4-aminopyrazoles in good yields using the Thorpe-Ziegler cyclization.

catalytic osmylation of cis and trans 2-cyclohexene-cyclohexanol (1a) and (1b) are carried out in the presence of n-methyl morpholine-n-oxide. under the same conditions, only the cis isomer reacted, leading to triol (3). the steric hindrance of the equatorial oh group probably prevents the trans isomer from entering into such reaction. triol (3) was also obtained from the reduction of the diol-...

The title compound, C16H23N3O3, contains two morpholine rings, each of which adopts a chair conformation. The mol-ecular conformation is stabilized by an intra-molecular O-H⋯N hydrogen bond, leading to a S(6) ring. In the crystal, mol-ecules are linked into zigzag chains along the c-axis direction by C-H⋯O and C-H⋯π inter-actions.

The title compound, C(7)H(14)NO(+)·Br(-), was formed by reaction of 4-allyl-morpholine and hydrogen bromide. In the crystal, mol-ecules are connected via N-H⋯Br and C-H⋯Br hydrogen bonds, forming a three-dimensional network.