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Chao, Chi Bong Eric ; Pham, Quoc Hoang ; Richardson, Christopher , et al. JOC,2024,89(18):13744-13755. DOI: 10.1021/acs.joc.4c01425 PubMed ID: 39206628
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Abstract: Diastereoselective Pd-catalyzed (3+2) and (4+2) cycloaddition reactions of sulfamidate imine-derived 1-azadienes with zwitterionic N-dipoles derived from 1-tosyl-2-vinylaziridine and 4-vinylbenzoxazinone have been developed. These reactions provide highly functionalized azaspirocycles featuring three contiguous stereocenters. The sulfonyl imine moiety of the cycloadducts can be fully reduced to access valuable β-amino alcohols.
Purchased from AmBeed: 147-85-3 ; 52522-40-4 ; 30934-62-4 ; 1025506-03-9
CAS No. : | 52522-40-4 | MDL No. : | MFCD00075479 |
Formula : | C52H43Cl3O3Pd2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | LNAMMBFJMYMQTO-FNEBRGMMSA-N |
M.W : | 1035.10 | Pubchem ID : | 11029508 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P201-P202-P264-P270-P280-P301+P312-P302+P352-P305+P351+P338-P308+P313-P330-P332+P313-P362-P403-P501 | UN#: | N/A |
Hazard Statements: | H302-H315-H351 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Product distribution / selectivity; | tetrakis(triphenylphosphine)palladium(0) [generated in situ from tris(diphenylmethylideneacetone)dipalladium chloroform adduct (16 mg, 0.016 mmol) and triphenylphosphine 312 mg, 0.12 mmol)] ; tetrakis(triphenylphosphine)palladium (0) [generated in situ from tris(dibenzylideneacetone)dipalladium chloroform adduct (27 mg, 0.025 mmol) and triphenylphosphine (52 mg, 0.20 mmol)] |