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_7055121
_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 H12 O4'
_chemical_formula_weight         256.25
_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   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                 99.816(14)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.439(3)
_cell_length_b                   5.0804(19)
_cell_length_c                   11.712(4)
_cell_measurement_reflns_used    679
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      22.27
_cell_measurement_theta_min      2.42
_cell_volume                     612.0(4)
_computing_cell_refinement       'APEXII/SAINT, Bruker,2004'
_computing_data_collection       'APEXII, Bruker,2004'
_computing_data_reduction        'SAINT PLUS/XPREP, Bruker,2004'
_computing_molecular_graphics    'ORTEP-3   (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97  (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97  (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97  (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.898
_diffrn_measured_fraction_theta_max 0.576
_diffrn_measurement_device_type  'Bruker ApexII CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0395
_diffrn_reflns_av_sigmaI/netI    0.0869
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -3
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            3034
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         30.93
_diffrn_reflns_theta_min         1.76
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  0.9899
_exptl_absorpt_correction_T_min  0.9558
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker,2004)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.390
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             268
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.670
_refine_diff_density_min         -0.204
_refine_diff_density_rms         0.064
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -1(4)
_refine_ls_extinction_coef       0.070(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.091
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     175
_refine_ls_number_reflns         1706
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.1322
_refine_ls_R_factor_gt           0.0693
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1622
_refine_ls_wR_factor_ref         0.1963
_reflns_number_gt                990
_reflns_number_total             1706
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5nj01484k2.cif
_cod_data_source_block           new
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 7055120--7055123.cif.
;
_cod_original_cell_volume        612.1(3)
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7055121