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_4027614
_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         'C13 H18 O7'
_chemical_formula_sum            'C13 H18 O7'
_chemical_formula_weight         286.27
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_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
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.1652(6)
_cell_length_b                   12.6259(9)
_cell_length_c                   14.2540(11)
_cell_measurement_reflns_used    4418
_cell_measurement_temperature    300.(2)
_cell_measurement_theta_max      23.2452
_cell_measurement_theta_min      2.8580
_cell_volume                     1469.49(19)
_computing_cell_refinement       'SAINT V7.68A (Bruker AXS, 2009)'
_computing_data_collection       'GIS (Bruker, 2011)'
_computing_data_reduction        'SAINT V7.68A (Bruker AXS, 2009)'
_computing_molecular_graphics    'APEX2 (Bruker, 2011)'
_computing_publication_material  'APEX2 (Bruker, 2011)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      300.(2)
_diffrn_detector_area_resol_mean 8.3330
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type
;
Bruker SMART X2S benchtop diffractometer
;
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  'doubly curved silicon crystal'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0226
_diffrn_reflns_av_sigmaI/netI    0.0198
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            9693
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.87
_diffrn_source                   'XOS X-beam microfocus source'
_exptl_absorpt_coefficient_mu    0.106
_exptl_absorpt_correction_T_max  0.98
_exptl_absorpt_correction_T_min  0.90
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.294
_exptl_crystal_description       block
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.111
_refine_diff_density_min         -0.154
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.2(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     186
_refine_ls_number_reflns         2587
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0387
_refine_ls_R_factor_gt           0.0326
_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^)+(0.0543P)^2^+0.0559P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0807
_refine_ls_wR_factor_ref         0.0851
_reflns_number_gt                2296
_reflns_number_total             2587
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo3017617_si_002_4.cif
_cod_data_source_block           Ketal_16b
_cod_database_code               4027614