Biomimetic total synthesis of angelicoin A and B via a palladium-catalyzed decarboxylative prenylation-aromatization sequence.
Anderson, Katie; Calo, Frederick; Pfaffeneder, Toni; White, Andrew J. P.; Barrett, Anthony G. M.; Organic letters 13 (2011) 5748–5750; doi:10.1021/ol202320m

data_1502524
_publ_section_title
;
 Biomimetic total synthesis of angelicoin A and B via a
 palladium-catalyzed decarboxylative prenylation-aromatization sequence.
;
_journal_issue                   21
_journal_name_full               'Organic letters'
_journal_page_first              5748
_journal_page_last               5750
_journal_paper_doi               10.1021/ol202320m
_journal_volume                  13
_journal_year                    2011
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C15 H18 O4'
_chemical_formula_sum            'C15 H18 O4'
_chemical_formula_weight         262.29
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 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                 99.8553(16)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   10.00787(16)
_cell_length_b                   26.3372(5)
_cell_length_c                   10.8051(2)
_cell_measurement_reflns_used    7085
_cell_measurement_temperature    173
_cell_measurement_theta_max      72.3961
_cell_measurement_theta_min      3.3534
_cell_volume                     2805.97(9)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173
_diffrn_detector_area_resol_mean 8.2556
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'OD Xcalibur PX Ultra'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance Ultra (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0211
_diffrn_reflns_av_sigmaI/netI    0.0217
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            11153
_diffrn_reflns_theta_full        72.55
_diffrn_reflns_theta_max         72.55
_diffrn_reflns_theta_min         3.36
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.735
_exptl_absorpt_correction_T_max  0.970
_exptl_absorpt_correction_T_min  0.909
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
; 
CrysAlisPro, Agilent Technologies, 
Version 1.171.34.49 (release 20-01-2011 CrysAlis171 .NET) 
(compiled Jan 20 2011,15:58:25) 
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            Colourless
_exptl_crystal_density_diffrn    1.242
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tablets
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.158
_refine_diff_density_min         -0.127
_refine_diff_density_rms         0.030
_refine_ls_abs_structure_details
'Flack H D (1983), Acta Cryst. A39, 876-881, 2400 Friedel pairs'
_refine_ls_abs_structure_Flack   -0.32(14)
_refine_ls_extinction_coef       0.00037(6)
_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   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     364
_refine_ls_number_reflns         5262
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0391
_refine_ls_R_factor_gt           0.0356
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0600P)^2^+0.2164P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0958
_refine_ls_wR_factor_ref         0.0993
_reflns_number_gt                4840
_reflns_number_total             5262
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol202320m_si_001.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      C2
_cod_database_code               1502524