Gold-catalyzed synthesis of 1<i>H</i>-isochromene-4-carbaldehydes <i>via</i> oxidative cascade cyclization.
Emmaniel Raju, Chittala; Kadiyala, Veerabhushanam; Sreenivasulu, Gottam; Kumar, Perla Bharath; Sridhar, Balasubramanian; Karunakar, Galla V.; Organic & biomolecular chemistry 19 (2021) 3634–3643; doi:10.1039/d1ob00066g

data_7157972
_publ_section_title
;
 Gold-catalyzed synthesis of 1<i>H</i>-isochromene-4-carbaldehydes
 <i>via</i> oxidative cascade cyclization.
;
_journal_issue                   16
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              3634
_journal_page_last               3643
_journal_paper_doi               10.1039/d1ob00066g
_journal_volume                  19
_journal_year                    2021
_chemical_formula_moiety         'C34 H26 O2'
_chemical_formula_sum            'C34 H26 O2'
_chemical_formula_weight         466.55
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2020-11-03 deposited with the CCDC.	2021-03-09 downloaded from the CCDC.
;
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_computing_structure_solution    '<i>SHELXT</i> (Sheldrick, 2015a)'
_diffrn_ambient_temperature      294(2)
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_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 QUEST PHOTON-100'
_diffrn_measurement_method       '\w and \f'
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_diffrn_reflns_Laue_measured_fraction_full 0.999
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0860P)^2^+1.1702P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1680
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_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1ob00066g2.cif
_cod_data_source_block           KA990_0m
_cod_depositor_comments          'Adding full bibliography for 7157972.cif.'
_cod_original_cell_volume        2514.3(2)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7157972
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_shelx_res_checksum              38895