Copper-catalyzed highly diastereoselective cross-dehydrogenative coupling between 8-hydroxyisochromanes and 1,3-dicarbonyl compounds
Zhang, Zhen; Tu, Yong-Qiang; Zhang, Xiao-Ming; Zhang, Fu-Min; Wang, Shao-Hua; Organic Chemistry Frontiers 6 (2019) 2275–; doi:10.1039/C9QO00353C

data_1554884
_publ_section_title
;
 Copper-catalyzed highly diastereoselective cross-dehydrogenative coupling
 between 8-hydroxyisochromanes and 1,3-dicarbonyl compounds
;
_journal_issue                   13
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              2275
_journal_paper_doi               10.1039/C9QO00353C
_journal_volume                  6
_journal_year                    2019
_chemical_formula_sum            'C16 H18 O4'
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_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-02-26 deposited with the CCDC.	2019-05-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
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_computing_cell_refinement       'Bruker SMART'
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_computing_molecular_graphics    SHELXTL
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_computing_structure_solution    'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 'fine-focus sealed tube'
_diffrn_measured_fraction_theta_full 0.998
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_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.2003P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1348
_refine_ls_wR_factor_ref         0.1506
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1847
_reflns_number_total             2357
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9qo00353c2.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1554884
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.972
_shelx_estimated_absorpt_t_max   0.981
_shelx_res_checksum              90762
_shelx_hkl_checksum              12996