Access to the Akuammiline Family of Alkaloids: Total Synthesis of (+)-Scholarisine A
Gregory L. Adams; Patrick J. Carroll; Amos B. Smith; Journal of the American Chemical Society 135 (2013) 519–528; doi:10.1021/ja3111626

data_4119172
_publ_section_title
;
 Access to the Akuammiline Family of Alkaloids: Total Synthesis of
 (+)-Scholarisine A
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              519
_journal_page_last               528
_journal_paper_doi               10.1021/ja3111626
_journal_volume                  135
_journal_year                    2013
_chemical_absolute_configuration syn
_chemical_formula_sum            'C18 H20 N2 O2'
_chemical_formula_weight         296.36
_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
_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                   11.2327(6)
_cell_length_b                   12.5514(7)
_cell_length_c                   20.9905(11)
_cell_measurement_temperature    143(1)
_cell_volume                     2959.4(3)
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      143(1)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device       'CCD Area Detector'
_diffrn_measurement_device_type  'Bruker APEXII'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0300
_diffrn_reflns_av_sigmaI/netI    0.0163
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            38096
_diffrn_reflns_theta_full        25.07
_diffrn_reflns_theta_max         25.07
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.6908
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2007)'
_exptl_crystal_density_diffrn    1.330
_exptl_crystal_F_000             1264
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.647
_refine_diff_density_min         -0.475
_refine_diff_density_rms         0.181
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.116
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     409
_refine_ls_number_reflns         5206
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.116
_refine_ls_R_factor_all          0.0327
_refine_ls_R_factor_gt           0.0286
_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^)+(0.0532P)^2^+0.4813P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0790
_refine_ls_wR_factor_ref         0.0871
_reflns_number_gt                4993
_reflns_number_total             5206
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja3111626_si_002.cif
_cod_data_source_block           CMPD(-)-50
_cod_original_sg_symbol_H-M      'P 21 21 21 '
_cod_database_code               4119172