Indium triflate catalyzed microwave-assisted alkenylation of methoxyphenols: synthesis of indenes and chromenes.
Rao, V. Kameswara; Kaswan, Pinku; Parang, Keykavous; Kumar, Anil; Organic & biomolecular chemistry 13 (2015) 11072–11077; doi:10.1039/c5ob01734c

data_7154712
_publ_section_title
;
 Indium triflate catalyzed microwave-assisted alkenylation of
 methoxyphenols: synthesis of indenes and chromenes.
;
_journal_issue                   45
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              11072
_journal_page_last               11077
_journal_paper_doi               10.1039/c5ob01734c
_journal_volume                  13
_journal_year                    2015
_chemical_formula_sum            'C26 H25 O'
_chemical_formula_weight         353.46
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_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
;
2015-08-13 deposited with the CCDC.
2015-09-10 downloaded from the CCDC.
;
_cell_angle_alpha                64.589(7)
_cell_angle_beta                 84.416(8)
_cell_angle_gamma                82.273(9)
_cell_formula_units_Z            2
_cell_length_a                   6.8637(10)
_cell_length_b                   11.7729(16)
_cell_length_c                   13.2710(19)
_cell_measurement_temperature    296(2)
_cell_volume                     958.9(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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  0.0284
_diffrn_reflns_av_sigmaI/netI    0.0286
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            13185
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.70
_exptl_absorpt_coefficient_mu    0.072
_exptl_crystal_density_diffrn    1.224
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             378
_refine_diff_density_max         0.197
_refine_diff_density_min         -0.192
_refine_diff_density_rms         0.031
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     249
_refine_ls_number_reflns         3343
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0612
_refine_ls_R_factor_gt           0.0440
_refine_ls_shift/su_max          1.418
_refine_ls_shift/su_mean         0.042
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1393
_refine_ls_wR_factor_ref         0.1513
_reflns_number_gt                2502
_reflns_number_total             3343
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ob01734c2.cif
_cod_data_source_block           red
_cod_depositor_comments
'Adding full bibliography for 7154712--7154713.cif.'
_cod_database_code               7154712