Cycloaddition Reactions of Allenylphosphonates and Related Allenes with Dialkyl Acetylenedicarboxylates, 1,3-Diphenylisobenzofuran, and Anthracene
K. V. Sajna; Ramesh Kotikalapudi; Manab Chakravarty; N. N. Bhuvan Kumar; K. C. Kumara Swamy; Journal of Organic Chemistry 76 (2011) 920–938; doi:10.1021/jo102240u

data_4026026
_publ_section_title
;
 Cycloaddition Reactions of Allenylphosphonates and Related Allenes with
 Dialkyl Acetylenedicarboxylates, 1,3-Diphenylisobenzofuran, and
 Anthracene
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              920
_journal_page_last               938
_journal_paper_doi               10.1021/jo102240u
_journal_volume                  76
_journal_year                    2011
_chemical_formula_sum            'C34 H35 O4 P'
_chemical_formula_weight         538.59
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 121.267(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.2152(16)
_cell_length_b                   14.2689(15)
_cell_length_c                   17.500(3)
_cell_measurement_temperature    298(2)
_cell_volume                     2820.6(7)
_computing_cell_refinement       'CrysAlisPro, Oxford Diffraction Ltd.'
_computing_data_collection       'CrysAlisPro, Oxford Diffraction Ltd.'
_computing_data_reduction        'CrysAlisPro, Oxford Diffraction Ltd.'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Eos, Gemini'
_diffrn_measurement_method       '\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  0.0563
_diffrn_reflns_av_sigmaI/netI    0.0544
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            23395
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.08
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count 'not applicable'
_diffrn_standards_interval_time  'not applicable'
_diffrn_standards_number         'not applicable'
_exptl_absorpt_coefficient_mu    0.135
_exptl_absorpt_correction_T_max  0.9774
_exptl_absorpt_correction_T_min  0.9683
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlisPro, Oxford Diffraction Ltd.'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.268
_exptl_crystal_description       blocks
_exptl_crystal_F_000             1144
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.336
_refine_diff_density_min         -0.364
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.938
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     354
_refine_ls_number_reflns         4948
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.938
_refine_ls_R_factor_all          0.0831
_refine_ls_R_factor_gt           0.0446
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0644P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1052
_refine_ls_wR_factor_ref         0.1148
_reflns_number_gt                3059
_reflns_number_total             4948
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo102240u_si_002_11.cif
_cod_data_source_block           compd-53
_cod_database_code               4026026