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_7154713
_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            'C25 H24 O4'
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_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
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_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
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_audit_update_record
;
2015-08-13 deposited with the CCDC.
2015-09-10 downloaded from the CCDC.
;
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_cell_angle_gamma                90.00
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_computing_cell_refinement       'Bruker SMART'
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_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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
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_diffrn_reflns_limit_h_min       -21
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_diffrn_reflns_limit_l_min       -13
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_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
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_exptl_crystal_colour            colourless
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_exptl_crystal_density_method    'not measured'
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_exptl_crystal_size_max          0.25
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_exptl_crystal_size_min          0.19
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_refine_ls_R_factor_all          0.0856
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0344P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0803
_refine_ls_wR_factor_ref         0.0898
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_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ob01734c2.cif
_cod_data_source_block           kck552
_cod_depositor_comments
'Adding full bibliography for 7154712--7154713.cif.'
_cod_original_cell_volume        2071.4
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_cod_database_code               7154713