1-Benzyl-4-aza-1-azoniabicyclo[2.2.2]octane Periodate: a Mild and Efficient Oxidant for the Cleavage of Oxime Double Bonds under Anhydrous Conditions†
作者:Abdol Reza Hajipour、Nasrien Mahboubghah
DOI:10.1039/a705809h
日期:——
1-Benzyl-4-aza-1-azoniabicyclo[2.2.2]octane periodate (BAABCP) (1), readily prepared from commercially available 1,4-diazabicyclo[2.2.2]octane (DABCO) and sodium periodate, converts oximes and α-sulfinyl oximes to the corresponding carbonyl compounds and β-keto sulfoxides, respectively, in high yields and high enantiomeric purity.
Highly Enantiomeric Purity Conversion of α-Sulfinyl Oximes and α-sulfinyl Hydrazones to the Corresponding β-keto Sulfoxides with Butyltriphenylphosphonium Periodate (BUTPPPI)
作者:A. R. Hajipour、A. E. Ruoho
DOI:10.1080/714040978
日期:2003.12.1
Butyltriphenylphosphonium periodate (Ph3P+BuIO4 −) 1 is readily prepared as a white solid from butyltriphenylphosphonium chloride, performs conversion of α-sulfinyl oximes (2) and α-sulfinyl hydrazones (4) to the corresponding β-keto sulfoxides (3) in high yields and high enantiomeric purity.
An Easy and Efficient Method for Cleavage of Carbon-Nitrogen Double Bonds Under Non-Aqueous and Neutral Conditions
作者:R. A. Hajipour、N. Mahboobkhah
DOI:10.1080/00397919808004413
日期:1998.9
Hajipour; Mohammadpoor-Baltork; Kianfar, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1999, vol. 38, # 2, p. 221 - 224
作者:Hajipour、Mohammadpoor-Baltork、Kianfar
DOI:——
日期:——
An unexpected rearrangement of a β-amino sulfoxide under pummerer reaction conditions
作者:Stephen G. Pyne、A.R. Hajipour
DOI:10.1016/s0040-4020(01)89357-1
日期:1994.1
Attempts to prepare the benzazepine ring system of the Rhoedine alkaloids using a Pummerer cyclization of the β-amino sulfoxide (16) gave instead the unexpected alcohol (19). The β-amino sulfoxide (16) was prepared via a diastereoselectivereduction of the β-sulfinyl enamine (8) with sodium borohydride.