Copper-Catalyzed Tandem O-Arylation-Oxidative Cross Coupling: Synthesis of Chromone Fused Pyrazoles.
Obulesu, Owk; Babu, K. Harish; Nanubolu, Jagadeesh Babu; Suresh, Surisetti; The Journal of organic chemistry 82 (2017) 2926–2934; doi:10.1021/acs.joc.6b02890

data_4032425
_publ_section_title
;
 Copper-Catalyzed Tandem O-Arylation-Oxidative Cross Coupling: Synthesis
 of Chromone Fused Pyrazoles.
;
_journal_issue                   6
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              2926
_journal_page_last               2934
_journal_paper_doi               10.1021/acs.joc.6b02890
_journal_volume                  82
_journal_year                    2017
_chemical_formula_moiety         'C18 H12 N2 O4'
_chemical_formula_sum            'C18 H12 N2 O4'
_chemical_formula_weight         320.30
_chemical_name_systematic
3-METHYL-1-PHENYL-[1,3]DIOXOLO[4,5,6,7]CHROMENO[2,3-c]PYRAZOL-4(1H)-ONE
_space_group_crystal_system      triclinic
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_diffrn_ambient_temperature      100(2)
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_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 QUEST PHOTON-100'
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_diffrn_reflns_point_group_measured_fraction_full 0.998
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_exptl_absorpt_process_details   'SADABS; Bruker,2016'
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_refine_ls_matrix_type           full
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_refine_ls_number_reflns         3177
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.0524
_refine_ls_R_factor_gt           0.0387
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0484P)^2^+0.2778P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo6b02890_si_002.cif
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_cod_original_cell_volume        693.4(13)
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_shelx_estimated_absorpt_t_min   0.963
_shelx_estimated_absorpt_t_max   0.993
_shelx_res_checksum              74313
_shelx_hkl_checksum              25802