Expeditious synthesis of functionalized tricyclic 4-spiro pyrano[2,3-c]pyrazoles in aqueous medium using dodecylbenzenesulphonic acid as a Brønsted acid‒surfactant-combined catalyst
Mukherjee, Prasun; Paul, Sanjay; Das, Asish R.; New J. Chem. 39 (2015) 9480–; doi:10.1039/C5NJ01728A

data_7055124
_publ_section_title
;
 Expeditious synthesis of functionalized tricyclic 4-spiro
 pyrano[2,3-c]pyrazoles in aqueous medium using dodecylbenzenesulphonic
 acid as a Br\/onsted acid--surfactant-combined catalyst
;
_journal_issue                   12
_journal_name_full               'New J. Chem.'
_journal_page_first              9480
_journal_paper_doi               10.1039/C5NJ01728A
_journal_volume                  39
_journal_year                    2015
_chemical_formula_sum            'C18 H12 N2 O4'
_chemical_formula_weight         320.30
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-10-31 deposited with the CCDC.
2015-09-24 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 99.196(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.5569(8)
_cell_length_b                   7.4472(4)
_cell_length_c                   12.9479(7)
_cell_measurement_temperature    293(2)
_cell_volume                     1575.99(14)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.971
_diffrn_measured_fraction_theta_max 0.971
_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  0.0236
_diffrn_reflns_av_sigmaI/netI    0.0192
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            19031
_diffrn_reflns_theta_full        27.71
_diffrn_reflns_theta_max         27.71
_diffrn_reflns_theta_min         1.25
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.9951
_exptl_absorpt_correction_T_min  0.9932
_exptl_crystal_density_diffrn    1.350
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Niddle
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.280
_refine_diff_density_min         -0.153
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     238
_refine_ls_number_reflns         3589
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0522
_refine_ls_R_factor_gt           0.0409
_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^)+(0.0580P)^2^+0.3767P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1083
_refine_ls_wR_factor_ref         0.1161
_reflns_number_gt                2868
_reflns_number_total             3589
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5nj01728a2.cif
_cod_data_source_block           ncpp
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 7055124--7055127.cif.
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7055124