Ni(NHC)]-Catalyzed Cycloaddition of Diynes and Tropone: Apparent Enone Cycloaddition Involving an 8π Insertion.
Kumar, Puneet; Thakur, Ashish; Hong, Xin; Houk, K. N.; Louie, Janis; Journal of the American Chemical Society  (2014) 141205115205004–; doi:10.1021/ja5105206

data_4123030
_publ_section_title
;
 Ni(NHC)]-Catalyzed Cycloaddition of Diynes and Tropone: Apparent Enone
 Cycloaddition Involving an 8\p Insertion.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              141205115205004
_journal_paper_doi               10.1021/ja5105206
_journal_year                    2014
_chemical_formula_moiety         'C29 H26 Br N O4 S'
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_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Nonius KappaCCD Diffractometer'
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_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0435P)^2^+0.7754P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0854
_refine_ls_wR_factor_ref         0.0920
_reflns_number_gt                4854
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_cod_data_source_file            ja5105206_si_003.cif
_cod_data_source_block           jl048
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/saulius/struct/COD-crude-data--automatic-downloads/rss-feeds/ACS/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 2935 2014-11-11 08:27:57Z andrius 
;
_cod_original_cell_volume        1297.32(3)
_cod_database_code               4123030