Total Syntheses of Multiple Cladiellin Natural Products by Use of a Completely General Strategy
J. Stephen Clark; Raphaëlle Berger; Stewart T. Hayes; Hans Martin Senn; Louis J. Farrugia; Lynne H. Thomas; Angus J. Morrison; Luca Gobbi; Journal of Organic Chemistry 78 (2013) 673–696; doi:10.1021/jo302542h

data_4027871
_publ_section_title
;
 Total Syntheses of Multiple Cladiellin Natural Products by Use of a
 Completely General Strategy
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              673
_journal_page_last               696
_journal_paper_doi               10.1021/jo302542h
_journal_volume                  78
_journal_year                    2013
_chemical_absolute_configuration rm
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C20 H32 O2'
_chemical_formula_sum            'C20 H32 O2'
_chemical_formula_weight         304.46
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_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_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.4
_audit_creation_date             2011-06-21T16:28:52-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   11.0342(8)
_cell_length_b                   17.6915(14)
_cell_length_c                   18.4903(15)
_cell_measurement_reflns_used    4011
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.73
_cell_measurement_theta_min      2
_cell_measurement_wavelength     0.71073
_cell_volume                     3609.5(5)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Giacovazzo et al, 1993)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.98
_diffrn_measured_fraction_theta_max 0.98
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_type       'by Bruker AXS Collect from scalepack cell'
_diffrn_orient_matrix_UB_11      0.6105E-3
_diffrn_orient_matrix_UB_12      -0.36313E-1
_diffrn_orient_matrix_UB_13      -0.414441E-1
_diffrn_orient_matrix_UB_21      0.173263E-1
_diffrn_orient_matrix_UB_22      0.425641E-1
_diffrn_orient_matrix_UB_23      -0.340507E-1
_diffrn_orient_matrix_UB_31      0.889536E-1
_diffrn_orient_matrix_UB_32      -0.80414E-2
_diffrn_orient_matrix_UB_33      0.69168E-2
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.154
_diffrn_reflns_av_unetI/netI     0.1512
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            3975
_diffrn_reflns_reduction_process
;
 Scaled and merged with Sortav
 R.H. Blessing, (1987) Cryst. Rev. 1, 3-58
 R.H. Blessing, (1989) J. Appl. Cryst. 22, 396-397

;
_diffrn_reflns_theta_full        26.24
_diffrn_reflns_theta_max         26.24
_diffrn_reflns_theta_min         2.15
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    0.07
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.121
_exptl_crystal_description       prism
_exptl_crystal_F_000             1344
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.199
_refine_diff_density_min         -0.219
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.957
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     405
_refine_ls_number_reflns         3975
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.957
_refine_ls_R_factor_all          0.1334
_refine_ls_R_factor_gt           0.0601
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0503P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1085
_refine_ls_wR_factor_ref         0.1257
_reflns_number_gt                2237
_reflns_number_total             3975
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            jo302542h_si_001_2.cif
_cod_data_source_block           comp_1E
_cod_database_code               4027871