Phosphine-catalyzed [4 + 2] cycloaddition of unsaturated pyrazolones with allenoates: a concise approach toward spiropyrazolones
Yang, Wenjun; Zhang, Yunpeng; Qiu, Shuxian; Zhao, Chuanqi; Zhang, Lei; Liu, Honglei; Zhou, Leijie; Xiao, Yumei; Guo, Hongchao; RSC Adv. 5 (2015) 62343–; doi:10.1039/C5RA11595G

data_7221599
_publ_section_title
;
 Phosphine-catalyzed [4 + 2] cycloaddition of unsaturated pyrazolones with
 allenoates: a concise approach toward spiropyrazolones
;
_journal_issue                   77
_journal_name_full               'RSC Adv.'
_journal_page_first              62343
_journal_paper_doi               10.1039/C5RA11595G
_journal_volume                  5
_journal_year                    2015
_chemical_formula_moiety         'C30 H28 N2 O3'
_chemical_formula_sum            'C30 H28 N2 O3'
_chemical_formula_weight         464.54
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-06-16 deposited with the CCDC.
2015-07-14 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 98.78(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.107(2)
_cell_length_b                   10.601(2)
_cell_length_c                   18.803(4)
_cell_measurement_reflns_used    7192
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      1.70
_cell_volume                     2385.0(8)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2007)'
_computing_molecular_graphics    'Olex2 ver 1.1'
_computing_publication_material  'SHELX97 (Sheldrick, 2008)'
_computing_structure_refinement  'Olex2 ver 1.1'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Saturn724+ CCD'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0351
_diffrn_reflns_av_sigmaI/netI    0.0344
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            16237
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.57
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6545
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2007)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.294
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             984
_exptl_crystal_size_max          0.63
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.31
_refine_diff_density_max         0.355
_refine_diff_density_min         -0.166
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.147
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     318
_refine_ls_number_reflns         5434
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.147
_refine_ls_R_factor_all          0.0583
_refine_ls_R_factor_gt           0.0526
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0469P)^2^+0.7781P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1213
_refine_ls_wR_factor_ref         0.1247
_reflns_number_gt                5040
_reflns_number_total             5434
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ra11595g2.cif
_cod_data_source_block           sa3076b
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7221599