Pd-free Sonogashira Coupling: One pot synthesis of Phthalide via domino Sonogashira coupling and 5-exo-dig cyclization
Ray, Jayanta K.; Dhara, Shubhendu; Singha, Raju; Ghosh, Munmun; Ahmed, Atiur; Nuree, Yasin; Das, Anuvab; RSC Adv.  (2014) –; doi:10.1039/C4RA07639G

data_7218087
_publ_section_title
;
 Pd-free Sonogashira Coupling: One pot synthesis of Phthalide via domino
 Sonogashira coupling and 5-exo-dig cyclization
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C4RA07639G
_journal_year                    2014
_chemical_formula_moiety         'C15 H10 O2'
_chemical_formula_sum            'C15 H10 O2'
_chemical_formula_weight         222.23
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                95.068(3)
_cell_angle_beta                 94.509(3)
_cell_angle_gamma                97.725(3)
_cell_formula_units_Z            2
_cell_length_a                   7.0356(8)
_cell_length_b                   8.6624(9)
_cell_length_c                   9.2989(10)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.99
_cell_measurement_theta_min      2.21
_cell_volume                     557.03(10)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_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  0.0246
_diffrn_reflns_av_sigmaI/netI    0.0217
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            6619
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.21
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.9827
_exptl_absorpt_correction_T_min  0.9827
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.325
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             232
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.144
_refine_diff_density_min         -0.288
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         1961
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0450
_refine_ls_R_factor_gt           0.0399
_refine_ls_shift/su_max          0.021
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0638P)^2^+0.0533P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1005
_refine_ls_wR_factor_ref         0.1070
_reflns_number_gt                1720
_reflns_number_total             1961
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c4ra07639g2.cif
_cod_data_source_block           out
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      'P-1   '
_cod_database_code               7218087