Catalytic Asymmetric Synthesis of Acyclic Arrays by Tandem 1,4-Addition-Aldol Reactions
Gareth P. Howell; Stephen P. Fletcher; Koen Geurts; Bjorn ter Horst; Ben L. Feringa; Journal of the American Chemical Society 128 (2006) 14977–14985; doi:10.1021/ja0651862

data_4111100
_publ_contact_author_address
;
     Crystal Structure Center,
     Chemical Physics,
     Materials Science Center,
     Groningen University,
     Nijenborgh 4,
     NL-9747 AG Groningen,
     The Netherlands.
;
_publ_contact_author_email       A.Meetsma@rug.nl
_publ_contact_author_fax         '+31 50 3634441'
_publ_contact_author_name
;
   Drs. A. Meetsma
;
_publ_contact_author_phone       '+31 50 3634368'
_publ_section_title
;
 Catalytic Asymmetric Synthesis of Acyclic Arrays by Tandem
 1,4-Addition-Aldol Reactions
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              14977
_journal_page_last               14985
_journal_paper_doi               10.1021/ja0651862
_journal_volume                  128
_journal_year                    2006
_chemical_absolute_configuration ad
_chemical_compound_source        'see text'
_chemical_formula_moiety         'C18 H19 N O4 S'
_chemical_formula_sum            'C18 H19 N O4 S'
_chemical_formula_weight         345.42
_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     heavy
_atom_sites_solution_secondary   direct
_audit_creation_date             '2005-12-16  08:04:19'
_audit_creation_method
;
 PLATON <TABLE ACC> option    (version :: 110805)
 SHELXL97-2 & Manual Editing 
;
_audit_update_record
;
 ?
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.7337(5)
_cell_length_b                   11.389(1)
_cell_length_c                   25.942(2)
_cell_measurement_reflns_used    3287
_cell_measurement_temperature    100(1)
_cell_measurement_theta_max      29.20
_cell_measurement_theta_min      2.96
_cell_volume                     1694.0(2)
_computing_cell_refinement       'SAINTPLUS, Version 6.02A, (Bruker, 2000)'
_computing_data_collection       'SMART, Version 5.624, (Bruker, 2001)'
_computing_data_reduction        'XPREP, Version 5.1/NT, (Bruker, 2000)'
_computing_molecular_graphics
;
 PLUTO (Meetsma, 2005) 
 PLATON (Spek, 2003)
;
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;
 DIRDIF-99 (Beurskens et al., 1999)
;
_diffrn_ambient_temperature      100(1)
_diffrn_detector_area_resol_mean '4096x4096 / 62x62 (binned 512)'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type
;
  Bruker Smart Apex; CCD area detector 
;
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_detector
;
  CCD area-detector
;
_diffrn_radiation_monochromator  'parallel mounted graphite'
_diffrn_radiation_source         'fine focus sealed Siemens Mo tube '
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0244
_diffrn_reflns_av_sigmaI/netI    0.0232
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            13476
_diffrn_reflns_reduction_process
;
 Intensity data were corrected for Lorentz and polarization
  effects, decay and absorption and reduced to F~o~^2^
  using SAINT (Bruker, 2000) and SADABS (Sheldrick, 2001)
;
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.96
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.213
_exptl_absorpt_correction_T_max  0.9648
_exptl_absorpt_correction_T_min  0.9047
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS, Sheldrick, Bruker, 2001))'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.354
_exptl_crystal_description       block
_exptl_crystal_F_000             728
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.233
_refine_diff_density_min         -0.148
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details
;
   Flack, H.D. & Bernardinelli, G. (1999, 2000)
;
_refine_ls_abs_structure_Flack   -0.01(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     293
_refine_ls_number_reflns         3451
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0274
_refine_ls_R_factor_gt           0.0261
_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^)+(0.0297P)^2^+0.4235P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0621
_refine_ls_wR_factor_ref         0.0629
_reflns_number_gt                3336
_reflns_number_total             3451
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja0651862si20060720_050559.cif
_cod_data_source_block           Q1066
_cod_database_code               4111100
_vrn_publ_code_squeezed_elec     0.0
_vrn_publ_code_void_volume       0.0
_vrn_publ_code_frame_time_sec    10.0
_vrn_publ_code_meas_time_hour    8.0