Chemodivergent, multicomponent domino reactions in aqueous media: l-proline-catalyzed assembly of densely functionalized 4H-pyrano[2,3-c]pyrazoles and bispyrazolyl propanoates from simple, acyclic starting materials
Prasanna, Pitchaimani; Perumal, Subbu; Menéndez, J. Carlos; Green Chemistry 15 (2013) 1292–; doi:10.1039/c3gc37128j

data_7211312
_publ_section_title
;
 Chemodivergent, multicomponent domino reactions in aqueous media:
 l-proline-catalyzed assembly of densely functionalized
 4H-pyrano[2,3-c]pyrazoles and bispyrazolyl propanoates from simple,
 acyclic starting materials
;
_journal_issue                   5
_journal_name_full               'Green Chemistry'
_journal_page_first              1292
_journal_paper_doi               10.1039/c3gc37128j
_journal_volume                  15
_journal_year                    2013
_chemical_formula_moiety         'C24 H23 N4 O4'
_chemical_formula_sum            'C24 H23 N4 O4'
_chemical_formula_weight         431.46
_chemical_name_systematic
;
?
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 110.166(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.2016(5)
_cell_length_b                   13.6995(5)
_cell_length_c                   15.4526(5)
_cell_measurement_reflns_used    5582
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.38
_cell_measurement_theta_min      1.55
_cell_volume                     2424.65(16)
_computing_cell_refinement       APEX2
_computing_data_collection       'APEX2 (Bruker, 2008)'
_computing_data_reduction        'SAINT (Bruker, 2008)'
_computing_molecular_graphics    'ORTEP3 (Farrugia, 1997)'
_computing_publication_material  'SHELXL97 and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type
'Bruker SMART APEXII area-detector diffractometer'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0270
_diffrn_reflns_av_sigmaI/netI    0.0265
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            24003
_diffrn_reflns_theta_full        28.45
_diffrn_reflns_theta_max         28.45
_diffrn_reflns_theta_min         1.85
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.182
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             908
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_platon_squeeze_details
;
;
_refine_diff_density_max         0.740
_refine_diff_density_min         -0.427
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.103
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     293
_refine_ls_number_reflns         6087
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.103
_refine_ls_R_factor_all          0.0799
_refine_ls_R_factor_gt           0.0604
_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^)+(0.1128P)^2^+0.6905P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2001
_refine_ls_wR_factor_ref         0.2121
_reflns_number_gt                4348
_reflns_number_total             6087
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3gc37128j.txt
_cod_data_source_block           shelxl
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'None' changed to 'none'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7211312