Syntheses of Papyracillic Acids: Application of the Tandem Chain Extension-Acylation Reaction
Jennifer R. Mazzone; Charles K. Zercher; Journal of Organic Chemistry 77 (2012) 9171–9178; doi:10.1021/jo3017617

data_4027612
_publ_contact_author_address
;Department of Chemistry
23 Academic Way
University of New Hampshire
Durham, NH 03824
;
_publ_contact_author_email       chuck.zercher@unh.edu
_publ_contact_author_name        'Charles K. Zercher'
_publ_section_title
;
 Syntheses of Papyracillic Acids: Application of the Tandem Chain
 Extension-Acylation Reaction
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              9171
_journal_page_last               9178
_journal_paper_doi               10.1021/jo3017617
_journal_volume                  77
_journal_year                    2012
_chemical_formula_moiety         'C12 H16 O7'
_chemical_formula_sum            'C12 H16 O7'
_chemical_formula_weight         272.25
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 92.832(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.8514(9)
_cell_length_b                   10.0365(11)
_cell_length_c                   17.100(2)
_cell_measurement_reflns_used    3799
_cell_measurement_temperature    300(2)
_cell_measurement_theta_max      24.9529
_cell_measurement_theta_min      2.3850
_cell_volume                     1345.8(3)
_computing_cell_refinement       'APEX2 (Bruker, 2010); SAINT (Bruker, 2009)'
_computing_data_collection       'GIS (Bruker)'
_computing_data_reduction
;
SAINT (Bruker, 2009); XPREP (Sheldrick, 2008)
;
_computing_molecular_graphics    'APEX2 (Bruker, 2010)'
_computing_publication_material  'APEX2 (Bruker, 2010)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      300(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker SMART X2S benchtop diffractometer'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  'doubly curved silicon crystal'
_diffrn_radiation_source         'XOS X-beam microfocus source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0363
_diffrn_reflns_av_sigmaI/netI    0.0309
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            8429
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         2.35
_exptl_absorpt_coefficient_mu    0.112
_exptl_absorpt_correction_T_max  0.9889
_exptl_absorpt_correction_T_min  0.8400
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Sheldrick, G. M. (2008) SADABS. University of G\"ottingen, Germany.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.344
_exptl_crystal_description       plate
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.268
_refine_diff_density_min         -0.263
_refine_diff_density_rms         0.077
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     177
_refine_ls_number_reflns         2369
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.0535
_refine_ls_R_factor_gt           0.0416
_refine_ls_shift/su_max          0.053
_refine_ls_shift/su_mean         0.006
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0908P)^2^+0.3183P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1224
_refine_ls_wR_factor_ref         0.1404
_reflns_number_gt                1929
_reflns_number_total             2369
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo3017617_si_002_2.cif
_cod_data_source_block           Hemiketal_15
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4027612