Papers - DANJO Hiroshi
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Allylic substitution in water catalyzed by amphiphilic resin-supported palladium-phosphine complexes Reviewed
H Danjo, D Tanaka, T Hayashi, Y Uozumi
TETRAHEDRON 55 ( 55 ) 14341 - 14352 1999.10
Joint Work
Authorship：Lead author Publisher：PERGAMON-ELSEVIER SCIENCE LTD
New amphiphilic resin-supported triarylphosphines PEP (1) were designed and prepared on polyethylene glycol-polystyrene graft copolymer (PEG-PS). Palladium complexes of 1, Pd(PEP)(2) (4) and Pd(PEP) (5), catalyzed allylic alkylation of 3-acetoxy-1,3-diphenyl-1-propene (6) and cinnamyl acetate (7) with various nucleophiles including 1,3-dicarbonyl compounds, amino acids, sodium azide, and sodium sulfinate, to give quantitative yields of corresponding allylic substituted products in water. (C) 1999 Elsevier Science Ltd. All rights reserved.
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New Amphiphilic Palladium-Phosphine Complexes Bound to Solid Supports: Preparation and Use for Palladium-Catalyzed Reactions in Aqueous Media
Hiroshi Danjo
1999.3
Single Work
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Cross-coupling of aryl halides and allyl acetates with arylboron reagents in water using an amphiphilic resin-supported palladium catalyst Reviewed
Y Uozumi, H Danjo, T Hayashi
JOURNAL OF ORGANIC CHEMISTRY 64 ( 64 ) 3384 - 3388 1998.12
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Palladium-catalyzed asymmetric allylic substitution in aqueous media using amphiphilic resin-supported MOP ligands Reviewed
Y Uozumi, H Danjo, T Hayashi
TETRAHEDRON LETTERS 39 ( 39 ) 8303 - 8306 1998.8
Joint Work
Publisher：PERGAMON-ELSEVIER SCIENCE LTD
A series of amphiphilic resin-supported MOP ligands PEP-MOP were prepared on a polyethylene glycol-polystyrene graft copolymer. Palladium complexes of EP-MOP were found to be effective as catalysts for the asymmetric substitution of 1,3-diphenyl-2-propenyl acetate with 3-methyl-2,4-pentanedione in aqueous K2CO3 to give 1,3-diphenyl-4-acetyl-4-methyl-1-hexen-5-one of up to 81% ee. (C) 1998 Elsevier Science Ltd. All rights reserved.
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New amphiphilic palladium-phosphine complexes bound to solid supports: Preparation and use for catalytic allylic substitution in aqueous media Reviewed
Y Uozumi, H Danjo, T Hayashi
TETRAHEDRON LETTERS 38 ( 38 ) 3557 - 3560 1997.4
Joint Work
Publisher：PERGAMON-ELSEVIER SCIENCE LTD
New amphiphilic palladium-phosphine complexes were designed and prepared on polyethylene glycol-polystyrene graft copolymer (PEG-PS) resin. The solid-supported palladium complexes showed high catalytic activity in allylic substitution reactions of allyl acetates with various nucleophiles in aqueous media. (C) 1997 Elsevier Science Ltd.
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DNA cleavage of novel propargylic sulfones. Enhancement of potency via intercalating interaction Reviewed
WM Dai, KC Fong, H Danjo, S Nishimoto, M Solow, WL Mak, ML Yeung
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS 6 ( 6 ) 1093 - 1098 1996.4
Joint Work
Publisher：PERGAMON-ELSEVIER SCIENCE LTD
A number of novel hydroxy propargylic sulfones 7-15 were synthesized as DNA cleaving agents. Enhancement of DNA cleavage potency was observed with those compounds which could interact with DNA through intercalation of the extended aromatic rings. (C) 1996 Elsevier Science Ltd
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Synthesis of cis-enediynes from 1,5-diynes by rearrangement of an allylic double bond Reviewed
WM Dai, KC Fong, H Danjo, S Nishimoto
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH 35 ( 35 ) 779 - 781 1995.11