Highly Stereocontrolled and Regiocontrolled Syntheses of 2,3,4-Trisubstituted Alkanoates and Lactones
Christopher P. Hencken; Douglas T. Genna; Maxime A. Siegler; Gary H. Posner; Journal of Organic Chemistry 76 (2011) 5149–5155; doi:10.1021/jo200795f

data_4026399
_publ_contact_author_address
;Department of Chemistry
Johns Hopkins University
Baltimore
MD 21218
USA
;
_publ_contact_author_email       ghp@jhu.edu
_publ_contact_author_name        'Gary H. Posner'
_publ_contact_author_phone       '(410) 516-4670'
_publ_section_title
;
 Highly Stereocontrolled and Regiocontrolled Syntheses of
 2,3,4-Trisubstituted Alkanoates and Lactones
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              5149
_journal_page_last               5155
_journal_paper_doi               10.1021/jo200795f
_journal_volume                  76
_journal_year                    2011
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C16 H22 O4'
_chemical_formula_sum            'C16 H22 O4'
_chemical_formula_weight         278.34
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 103.206(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.8595(6)
_cell_length_b                   5.7645(3)
_cell_length_c                   15.8715(11)
_cell_measurement_reflns_used    3244
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      24.35
_cell_measurement_theta_min      2.36
_cell_volume                     789.13(9)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
;
_computing_molecular_graphics    'SHELXTL v6.10 (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL v6.10 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      110(2)
_diffrn_detector_area_resol_mean 15.989
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Goniometer KM4/Xcalibur, detector: Sapphire3'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0657
_diffrn_reflns_av_sigmaI/netI    0.0599
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            5754
_diffrn_reflns_theta_full        23.99
_diffrn_reflns_theta_max         23.99
_diffrn_reflns_theta_min         2.43
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.997
_exptl_absorpt_correction_T_min  0.976
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.44 (release 25-10-2010 CrysAlis171 .NET)
(compiled Oct 25 2010,18:11:34)
Analytical numeric absorption correction using a multifaceted crystal
            model based on expressions derived by R.C. Clark & J.S. Reid.
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897)
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.171
_exptl_crystal_description       'thin lath'
_exptl_crystal_F_000             300
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.199
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.046
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.016
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     185
_refine_ls_number_reflns         1378
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.016
_refine_ls_R_factor_all          0.0516
_refine_ls_R_factor_gt           0.0415
_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^)+(0.0648P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0975
_refine_ls_wR_factor_ref         0.1019
_reflns_number_gt                1203
_reflns_number_total             1378
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo200795f_si_002_1.cif
_cod_data_source_block           10
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4026399