A Convenient Synthesis of 2-Substituted Benzofurans from Salicylaldehydes
Menon, Rajeev; Reddy, Swetha; Thadkapally, Srinivas; Mamidyala, Mounika; Nanubolu, Jagadeesh babu; RSC Adv.  (2014) –; doi:10.1039/C4RA14948C

data_7219197
_publ_section_title
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 A Convenient Synthesis of 2-Substituted Benzofurans from Salicylaldehydes
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C4RA14948C
_journal_year                    2014
_chemical_formula_moiety         'C14 H14 O4'
_chemical_formula_sum            'C14 H14 O4'
_chemical_formula_weight         246.25
_chemical_name_systematic
; 
 (E)-methyl-3-(5-methoxybenzofuran-2-yl)acrylate 
;
_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
_audit_update_record
;
2014-08-25 deposited with the CCDC.
2014-12-24 downloaded from the CCDC.
;
_cell_angle_alpha                91.440(3)
_cell_angle_beta                 101.366(3)
_cell_angle_gamma                114.809(3)
_cell_formula_units_Z            2
_cell_length_a                   8.0907(15)
_cell_length_b                   8.1765(15)
_cell_length_c                   10.6283(19)
_cell_measurement_reflns_used    2721
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.11
_cell_measurement_theta_min      2.76
_cell_volume                     621.1(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0228
_diffrn_reflns_av_sigmaI/netI    0.0236
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6041
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.97
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.9857
_exptl_absorpt_correction_T_min  0.9597
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker AXS SADABS program'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.317
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             260
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.161
_refine_diff_density_min         -0.155
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.109
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     165
_refine_ls_number_reflns         2189
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.109
_refine_ls_R_factor_all          0.0531
_refine_ls_R_factor_gt           0.0470
_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^)+(0.0541P)^2^+0.1310P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1141
_refine_ls_wR_factor_ref         0.1184
_reflns_number_gt                1932
_reflns_number_total             2189
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra14948c2.cif
_cod_data_source_block           aw30m
_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 2935 2014-11-11 08:27:57Z andrius 
;
_cod_original_sg_symbol_H-M      'P-1   '
_cod_database_code               7219197