Conversion of lapachol to lomatiol: synthesis of novel naphthoquinone derivatives
Eyong, Kenneth O.; Chinthapally, Kiran; Senthilkumar, Soundararasu; Lamshöft, Marc; Folefoc, Gabriel N.; Baskaran, Sundarababu; New J. Chem. 39 (2015) 9611–; doi:10.1039/C5NJ01484K

data_7055123
_publ_section_title
;
 Conversion of lapachol to lomatiol: synthesis of novel naphthoquinone
 derivatives
;
_journal_issue                   12
_journal_name_full               'New J. Chem.'
_journal_page_first              9611
_journal_paper_doi               10.1039/C5NJ01484K
_journal_volume                  39
_journal_year                    2015
_chemical_formula_sum            'C15 H14 O5'
_chemical_formula_weight         274.26
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2013-11-09 deposited with the CCDC.
2015-09-23 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 95.998(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.3939(4)
_cell_length_b                   19.7414(11)
_cell_length_c                   8.5702(4)
_cell_measurement_reflns_used    3999
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.72
_cell_measurement_theta_min      2.60
_cell_volume                     1244.11(11)
_computing_cell_refinement       'APEX2/SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT/XPREP (Bruker, 2004)'
_computing_molecular_graphics
'ORTEP3 (Farrugia, 1997) and Mercury (Macrae et al., 2008)'
_computing_publication_material  'PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altomare et al., 1993)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'bruker axs kappa apex2 CCD Diffractometer'
_diffrn_measurement_method       '\w and \f scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0278
_diffrn_reflns_av_sigmaI/netI    0.0233
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            13277
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.60
_exptl_absorpt_coefficient_mu    0.111
_exptl_absorpt_correction_T_max  0.9729
_exptl_absorpt_correction_T_min  0.9123
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2004)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.464
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.316
_refine_diff_density_min         -0.226
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     184
_refine_ls_number_reflns         2851
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0549
_refine_ls_R_factor_gt           0.0424
_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^)+(0.0801P)^2^+0.1624P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1257
_refine_ls_wR_factor_ref         0.1364
_reflns_number_gt                2269
_reflns_number_total             2851
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5nj01484k2.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
'Adding full bibliography for 7055120--7055123.cif.'
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7055123