Modular synthesis of oligoacetylacetones via site-selective silylation of acetylacetone derivatives.
Sarkar, Parantap; Inaba, Yuya; Shirakura, Hayato; Yoneda, Tomoki; Inokuma, Yasuhide; Organic & biomolecular chemistry 18 (2020) 3297–3302; doi:10.1039/d0ob00501k

data_7157457
_publ_section_title
;
 Modular synthesis of oligoacetylacetones via site-selective silylation of
 acetylacetone derivatives.
;
_journal_issue                   17
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              3297
_journal_page_last               3302
_journal_paper_doi               10.1039/d0ob00501k
_journal_volume                  18
_journal_year                    2020
_chemical_formula_moiety         'C20 H30 O4'
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_cell_length_c                   14.9915(7)
_cell_measurement_reflns_used    10446
_cell_measurement_temperature    123(2)
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_diffrn_measurement_device       'four-circle diffractometer'
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_diffrn_reflns_Laue_measured_fraction_full 1.000
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_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.43a (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
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_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
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_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.0724P)^2^+1.2193P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_number_total             4072
_reflns_threshold_expression     'I > 2\s(I)'
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_cod_data_source_block           Compound3b
_cod_depositor_comments
'Adding full bibliography for 7157456--7157460.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7157457
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.953
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_shelx_res_checksum              51845
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