Photoinduced Intramolecular Cyclopentanation vs Photoprotolytic Oxametathesis in Polycyclic Alkenes Outfitted with Conformationally Constrained Aroylmethyl Chromophores
Roman A. Valiulin; Teresa M. Arisco; Andrei G. Kutateladze; Journal of Organic Chemistry 78 (2013) 2012–2025; doi:10.1021/jo301909j

data_4027995
_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
;
 Photoinduced Intramolecular Cyclopentanation vs Photoprotolytic
 Oxametathesis in Polycyclic Alkenes Outfitted with Conformationally
 Constrained Aroylmethyl Chromophores
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              2012
_journal_page_last               2025
_journal_paper_doi               10.1021/jo301909j
_journal_volume                  78
_journal_year                    2013
_chemical_formula_moiety         'C14 H14 O6'
_chemical_formula_sum            'C14 H14 O6'
_chemical_formula_weight         278.25
_chemical_name_common            none
_chemical_name_systematic
;
dimethyl 11,12-dioxatetracyclo[6.2.1.1^3,6^.0^2,7^]
dodeca-4,9-diene-2,7-dicarboxylate
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 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            8
_cell_length_a                   7.6888(2)
_cell_length_b                   25.3925(8)
_cell_length_c                   12.9468(4)
_cell_measurement_reflns_used    9769
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.82
_cell_measurement_theta_min      2.77
_cell_volume                     2527.71(13)
_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  0.0404
_diffrn_reflns_av_sigmaI/netI    0.0187
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            70380
_diffrn_reflns_theta_full        25.69
_diffrn_reflns_theta_max         25.69
_diffrn_reflns_theta_min         1.77
_exptl_absorpt_coefficient_mu    0.115
_exptl_absorpt_correction_T_max  0.9917
_exptl_absorpt_correction_T_min  0.9230
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.462
_exptl_crystal_description       plate\prism
_exptl_crystal_F_000             1168
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.493
_refine_diff_density_min         -0.238
_refine_diff_density_rms         0.059
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.2(18)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.115
_refine_ls_matrix_type           full
_refine_ls_number_parameters     365
_refine_ls_number_reflns         4784
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.114
_refine_ls_R_factor_all          0.0800
_refine_ls_R_factor_gt           0.0681
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0906P)^2^+2.7540P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1895
_refine_ls_wR_factor_ref         0.1981
_reflns_number_gt                4088
_reflns_number_total             4784
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo301909j_si_001_16.cif
_cod_data_source_block           29_30_rav28649_try2
_cod_database_code               4027995