Transacetoacetylation with tert-butyl acetoacetate: synthetic applications
摘要:
Reaction of various nucleophiles with tert-butyl acetoacetate (t-BAA, 1a) is shown to be a convenient method for the preparation of a wide variety of acetoacetic acid derivatives. This material can be used to prepare acetoacetates and acetoacetamides from a wide variety of alcohols and amines. Reaction of 1a with an unhindered primary amine such as n-heptylamine under standard conditions gives unwanted byproducts due to the formation of the enamines 24 and 25. Formation of these byproducts can be minimized by dilution and/or altering the mode of addition.
Transacetoacetylation with tert-butyl acetoacetate: synthetic applications
摘要:
Reaction of various nucleophiles with tert-butyl acetoacetate (t-BAA, 1a) is shown to be a convenient method for the preparation of a wide variety of acetoacetic acid derivatives. This material can be used to prepare acetoacetates and acetoacetamides from a wide variety of alcohols and amines. Reaction of 1a with an unhindered primary amine such as n-heptylamine under standard conditions gives unwanted byproducts due to the formation of the enamines 24 and 25. Formation of these byproducts can be minimized by dilution and/or altering the mode of addition.
Ru(bpy)<sub>3</sub><sup>3+</sup>Electrochemiluminescence Detection of Aliphatic and Aromatic Amines with Diketene
作者:Kazuo Uchikura
DOI:10.1246/cl.2003.98
日期:2003.1
A new derivatization method for the detection of aliphatic and aromatic amines, based on electro-chemiluminescence (ECL) with Ru(bpy)32+ is proposed. Sample amines were derivatized to acetoacetylamide-type derivatives using diketene. The derivatives were detected by reversed-phase HPLC with ECL detection using Ru(bpy)32+.
Acetoacetylation with 2,2,6-trimethyl-4H-1,3-dioxin-4-one: a convenient alternative to diketene
作者:Robert J. Clemens、John A. Hyatt
DOI:10.1021/jo00214a006
日期:1985.7
WITZEMAN, J. STEWART;NOTTINGHAM, W. DELL, J. ORG. CHEM., 56,(1991) N, C. 1713-1718
作者:WITZEMAN, J. STEWART、NOTTINGHAM, W. DELL
DOI:——
日期:——
CLEMENS, R. J.;HYATT, J. A., J. ORG. CHEM., 1985, 50, N 14, 2431-2435
作者:CLEMENS, R. J.、HYATT, J. A.
DOI:——
日期:——
Transacetoacetylation with tert-butyl acetoacetate: synthetic applications
作者:J. Stewart Witzeman、W. Dell Nottingham
DOI:10.1021/jo00005a013
日期:1991.3
Reaction of various nucleophiles with tert-butyl acetoacetate (t-BAA, 1a) is shown to be a convenient method for the preparation of a wide variety of acetoacetic acid derivatives. This material can be used to prepare acetoacetates and acetoacetamides from a wide variety of alcohols and amines. Reaction of 1a with an unhindered primary amine such as n-heptylamine under standard conditions gives unwanted byproducts due to the formation of the enamines 24 and 25. Formation of these byproducts can be minimized by dilution and/or altering the mode of addition.