A multicomponent formal [1+2+2+1]-cycloaddition for the Synthesis of dihydropyridines
P. Ricardo Girling; Andrei Batsanov; Hong Shen; Andrew Whiting; Chem.Commun. 48 (2012) 4893–4895; doi:10.1039/c2cc31495a

data_7107672
_publ_section_title
;
 A multicomponent formal [1+2+2+1]-cycloaddition for the Synthesis of
 dihydropyridines
;
_journal_name_full               Chem.Commun.
_journal_page_first              4893
_journal_page_last               4895
_journal_paper_doi               10.1039/c2cc31495a
_journal_volume                  48
_journal_year                    2012
_chemical_formula_moiety         'C18 H18 N2 O4'
_chemical_formula_sum            'C18 H18 N2 O4'
_chemical_formula_weight         326.34
_chemical_melting_point          379.7(5)
_chemical_name_systematic
;
1,1'-(1-Allyl-4-(4-nitrophenyl)-1,4-dihydropyridine-3,5-diyl)diethanone
;
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2012-01-12
_audit_creation_method
;
Olex2 1.1-beta (compiled 2011.11.01 svn.r2039, GUI svn.r3906)
;
_cell_angle_alpha                95.465(2)
_cell_angle_beta                 99.984(2)
_cell_angle_gamma                93.148(2)
_cell_formula_units_Z            2
_cell_length_a                   8.0656(3)
_cell_length_b                   8.3174(3)
_cell_length_c                   12.3033(4)
_cell_measurement_reflns_used    4742
_cell_measurement_temperature    120
_cell_measurement_theta_max      30.90
_cell_measurement_theta_min      2.49
_cell_volume                     807.02(5)
_computing_cell_refinement       'SAINT v6.45A (Bruker, 2003)'
_computing_data_collection       'SMART v5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT v6.45A (Bruker, 2003)'
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
XL, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_computing_structure_solution
;
XS, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_diffrn_ambient_temperature      120
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 5.6
_diffrn_detector_type            'Bruker SMART CCD 6000 area detector'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART CCD 6000 area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_xray_symbol    K-L~3~
_diffrn_reflns_av_R_equivalents  0.0267
_diffrn_reflns_av_unetI/netI     0.0310
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            13943
_diffrn_reflns_theta_full        29.50
_diffrn_reflns_theta_max         29.50
_diffrn_reflns_theta_min         1.69
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           35.0
_diffrn_source_power             1.75
_diffrn_source_target            Mo
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  0.8622
_exptl_absorpt_correction_T_min  0.6693
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2006/1 (Bruker,2006) was used for absorption correction.
R(int) was 0.0375 before and 0.0259 after correction.
The Ratio of minimum to maximum transmission is 0.7763.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            'clear light yellow'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.343
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             344
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.420
_refine_diff_density_min         -0.220
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         4499
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0622
_refine_ls_R_factor_gt           0.0475
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0600P)^2^+0.3P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1204
_refine_ls_wR_factor_ref         0.1349
_reflns_number_gt                3510
_reflns_number_total             4499
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            c2cc31495a.txt
_cod_data_source_block           4g
_cod_database_code               7107672