Facile access to 2,2-diaryl 2H-chromenes through a palladium-catalyzed cascade reaction of ortho-vinyl bromobenzenes with N-tosylhydrazones.
Zhang, Heng; Yu, Yinghua; Huang, Xueliang; Organic & biomolecular chemistry 18 (2020) 5115–5119; doi:10.1039/d0ob00978d

data_7157558
_publ_section_title
;
 Facile access to 2,2-diaryl 2H-chromenes through a palladium-catalyzed
 cascade reaction of ortho-vinyl bromobenzenes with N-tosylhydrazones.
;
_journal_issue                   27
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              5115
_journal_page_last               5119
_journal_paper_doi               10.1039/d0ob00978d
_journal_volume                  18
_journal_year                    2020
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;
2020-01-17 deposited with the CCDC.	2020-06-22 downloaded from the CCDC.
;
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_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1169P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1948
_refine_ls_wR_factor_ref         0.2140
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3525
_reflns_number_total             4639
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0ob00978d2.cif
_cod_data_source_block           5
_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/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/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 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 7157557--7157560.cif.
;
_cod_original_cell_volume        4074(2)
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_cod_original_formula_sum        'C21 H16.50 Br2 O2.25'
_cod_database_code               7157558
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              89542