Asymmetric Annulation of Donor-Acceptor Cyclopropanes with Dienes.
Xu, Hao; Hu, Jiang-Lin; Wang, Lijia; Liao, Saihu; Tang, Yong; Journal of the American Chemical Society 137 (2015) 8006–8009; doi:10.1021/jacs.5b04429

data_4123838
_publ_section_title
;
 Asymmetric Annulation of Donor-Acceptor Cyclopropanes with Dienes.
;
_journal_issue                   25
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8006
_journal_page_last               8009
_journal_paper_doi               10.1021/jacs.5b04429
_journal_volume                  137
_journal_year                    2015
_chemical_formula_sum            'C58 H67 O6 Si'
_chemical_formula_weight         888.21
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
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_atom_sites_solution_hydrogens   geom
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_atom_sites_solution_secondary   difmap
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_cell_angle_beta                 94.182(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.0240(10)
_cell_length_b                   26.231(2)
_cell_length_c                   15.7584(15)
_cell_measurement_reflns_used    4046
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      44.977
_cell_measurement_theta_min      4.420
_cell_volume                     4957.0(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
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_diffrn_radiation_wavelength     0.71073
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_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            28616
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         1.87
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.71566
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.190
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             1908
_exptl_crystal_size_max          0.211
_exptl_crystal_size_mid          0.175
_exptl_crystal_size_min          0.123
_refine_diff_density_max         0.448
_refine_diff_density_min         -0.235
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     590
_refine_ls_number_reflns         9201
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.1246
_refine_ls_R_factor_gt           0.0828
_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^)+(0.1120P)^2^+6.4154P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2309
_refine_ls_wR_factor_ref         0.2556
_reflns_number_gt                5706
_reflns_number_total             9201
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja5b04429_si_005.cif
_cod_data_source_block           cd213647
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 4123835--4123839.cif.
;
_cod_original_cell_volume        4957.1(8)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4123838