Double-Tandem [4π+2π].[2π+2π].[4π+2π].[2π+2π] Synthetic Sequence with Photoprotolytic Oxametathesis and Photoepoxidation in the Chromone Series
Roman A. Valiulin; Teresa M. Arisco; Andrei G. Kutateladze; Journal of Organic Chemistry 76 (2011) 1319–1332; doi:10.1021/jo102221q

data_4026077
_publ_contact_author_address
;Department of Chemistry and Biochemistry
University of Denver
FW Olin Hall, 202
2190 E. Iliff Ave
Denver, CO 80208
;
_publ_contact_author_email       akutatel.edu
_publ_contact_author_fax         303-871-2254
_publ_contact_author_name        'Andrei Kutateladze'
_publ_contact_author_phone       303-871-2995
_publ_section_title
;
 Double-Tandem [4\p+2\p].[2\p+2\p].[4\p+2\p].[2\p+2\p] Synthetic Sequence
 with Photoprotolytic Oxametathesis and Photoepoxidation in the Chromone
 Series
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1319
_journal_page_last               1332
_journal_paper_doi               10.1021/jo102221q
_journal_volume                  76
_journal_year                    2011
_chemical_formula_moiety         'C25 H21 N O3'
_chemical_formula_sum            'C25 H21 N O3'
_chemical_formula_weight         383.44
_chemical_name_common            none
_chemical_name_systematic
;
9-cyano-15-phenyl-3,14-dioxanonacyclo
[10.4.2.1^2,5^.1^8,11^.0^2,11^.0^4,9^.0^13,16^.0^15,18^.0^19,20^]
icosa-10-one
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.9161(2)
_cell_length_b                   10.5248(2)
_cell_length_c                   19.5057(4)
_cell_measurement_reflns_used    9881
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.03
_cell_measurement_theta_min      2.20
_cell_volume                     1830.42(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker D8 APEX II Diffractometer'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0274
_diffrn_reflns_av_sigmaI/netI    0.0149
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            83001
_diffrn_reflns_theta_full        28.40
_diffrn_reflns_theta_max         28.40
_diffrn_reflns_theta_min         2.09
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.9915
_exptl_absorpt_correction_T_min  0.9064
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.395
_exptl_crystal_description       needle
_exptl_crystal_F_000             812
_exptl_crystal_size_max          1.10
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.204
_refine_diff_density_min         -0.174
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.4(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.746
_refine_ls_matrix_type           full
_refine_ls_number_parameters     266
_refine_ls_number_reflns         4579
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.746
_refine_ls_R_factor_all          0.0409
_refine_ls_R_factor_gt           0.0354
_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^)+(0.1051P)^2^+0.2865P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1003
_refine_ls_wR_factor_ref         0.1067
_reflns_number_gt                4127
_reflns_number_total             4579
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo102221q_si_008.cif
_cod_data_source_block           rav28566_2_0m
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_database_code               4026077