DMAP mediated one-pot domino thienannulation: a versatile, regioselective and green mechanochemical route to naphtho[2,3-b]thiophenes
Shukla, Gaurav; Verma, Girijesh Kumar; Nagaraju, Anugula; Verma, Rajiv Kumar; Raghuvanshi, Keshav; Singh, Maya Shankar; RSC Advances 3 (2013) 13811–; doi:10.1039/c3ra41100a

data_7239014
_publ_section_title
;
 DMAP mediated one-pot domino thienannulation: a versatile, regioselective
 and green mechanochemical route to naphtho[2,3-b]thiophenes
;
_journal_issue                   33
_journal_name_full               'RSC Advances'
_journal_page_first              13811
_journal_paper_doi               10.1039/c3ra41100a
_journal_volume                  3
_journal_year                    2013
_chemical_formula_sum            'C11 H10 Cl0 O2 S'
_chemical_formula_weight         206.25
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_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                 104.861(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            7
_cell_length_a                   9.1727(12)
_cell_length_b                   12.4922(14)
_cell_length_c                   15.7956(17)
_cell_measurement_temperature    293(2)
_cell_volume                     1749.4(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.855
_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  0.0293
_diffrn_reflns_av_sigmaI/netI    0.0523
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8585
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         29.11
_diffrn_reflns_theta_min         3.36
_exptl_absorpt_coefficient_mu    0.292
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.370
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             756
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.35
_refine_diff_density_max         1.045
_refine_diff_density_min         -0.471
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     235
_refine_ls_number_reflns         4016
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.1034
_refine_ls_R_factor_gt           0.0636
_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^)+(0.0913P)^2^+0.6929P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1618
_refine_ls_wR_factor_ref         0.1954
_reflns_number_gt                2556
_reflns_number_total             4016
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra41100a.txt
_cod_data_source_block           on-di
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7239014