Influence of diene substituent position on the stereochemical outcome in IMDA reaction of decatrienones. An asymmetric synthesis of C10-epi-dihydro-epi-deoxy arteannuin B.
Mondal, Sujit; Yadav, Ram Naresh; Ghosh, Subrata; Organic letters 13 (2011) 6078–6081; doi:10.1021/ol202562w

data_1502577
_publ_section_title
;
 Influence of diene substituent position on the stereochemical outcome in
 IMDA reaction of decatrienones. An asymmetric synthesis of
 C10-epi-dihydro-epi-deoxy arteannuin B.
;
_journal_issue                   22
_journal_name_full               'Organic letters'
_journal_page_first              6078
_journal_page_last               6081
_journal_paper_doi               10.1021/ol202562w
_journal_volume                  13
_journal_year                    2011
_chemical_formula_sum            'C16 H22 O4'
_chemical_formula_weight         278.34
_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                   7.0739(9)
_cell_length_b                   13.6570(16)
_cell_length_c                   14.9355(18)
_cell_measurement_temperature    150(2)
_cell_volume                     1442.9(3)
_computing_cell_refinement       'Bruker Apex II'
_computing_data_collection       'Bruker Apex II'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'Mercury 2.3'
_computing_publication_material  Shelxl-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 3
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker Apex II'
_diffrn_measurement_method       'Phi-Omega scan'
_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  0.0525
_diffrn_reflns_av_sigmaI/netI    0.0278
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            10465
_diffrn_reflns_theta_full        20.01
_diffrn_reflns_theta_max         20.01
_diffrn_reflns_theta_min         2.02
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.9901
_exptl_absorpt_correction_T_min  0.9785
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.281
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.119
_refine_diff_density_min         -0.152
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   1.3(17)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.101
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     184
_refine_ls_number_reflns         1348
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.101
_refine_ls_R_factor_all          0.0336
_refine_ls_R_factor_gt           0.0316
_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^)+(0.0452P)^2^+0.1443P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0738
_refine_ls_wR_factor_ref         0.0754
_reflns_number_gt                1281
_reflns_number_total             1348
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol202562w_si_002.cif
_cod_data_source_block           22_rny111_0m
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1502577