Conversion of furfural to tetrahydrofuran-derived secondary amines under mild conditions
作者:Shi Jiang、Eric Muller、François Jerôme、Marc Pera-Titus、Karine De Oliveira Vigier
DOI:10.1039/d0gc00119h
日期:——
production of amino-containing compounds from biomass is an important goal of research programs. Starting from carbohydrate-based furfural, a simple and highly efficient system was developed for producing a library of secondary and tertiary tetrahydrofurfurylamines undermildconditions (25 °C/1 bar H2) with excellent yields (>90%). Commercially available Pd/Al2O3 proved to be a suitable catalyst and exhibited
由生物质生产含氨基化合物是研究计划的重要目标。从基于碳水化合物的糠醛开始,开发了一种简单高效的系统,可在温和条件下(25°C / 1 bar H 2)以优异的收率(> 90%)生产仲和叔四氢糠胺库。市场上可买到的Pd / Al 2 O 3被证明是合适的催化剂,并表现出出色的性能。
Preparation of 3-dihaloacetyl oxazolidines
申请人:MONSANTO COMPANY
公开号:EP0648768A1
公开(公告)日:1995-04-19
The disclosure herein relates to a new process for the preparation of 3-dihaloacetyl (un)substituted oxazolidine compounds by the catalytic hydrogenation of nitroalcohols with aldehydes or ketones followed by reaction with a dihaloacetyl halide as shown below
wherein
The R and R₁₋₅ groups are independently H, C₁₋₆ alkyl, haloalkyl, alkylol or alkoxy or alkoxyalkyl having up to 8 carbon atoms, phenyl, benzyl or heterocyclyl having up to 10 carbon atoms and containing O, S and/or N ring atoms and
X and X₁ are independently halogen, preferably chlorine, bromine or iodine, especially chlorine.
本公开涉及一种制备 3-二卤乙酰基(未)取代噁唑烷化合物的新工艺,其方法是硝基醇与醛或酮催化加氢,然后与二卤乙酰卤反应,如下所示
其中
R和R₁₋₅基团独立地为H、具有最多8个碳原子的C₁₋₆烷基、卤代烷基、烷醇或烷氧基或烷氧基烷基、具有最多10个碳原子并含有O、S和/或N环原子的苯基、苄基或杂环基,以及
X 和 X₁ 独立地是卤素,最好是氯、溴或碘,尤其是氯。
Synthesis and some reactions of oxazolidines containing functional groups
作者:K. D. Petrov、G. I. Ostroumova
DOI:10.1007/bf01172535
日期:1967.7
KOCHETKOVA I. V.; BIRYUKOVA D. A.; KELAREV V. I.; IVANENKO O. E.; KARAXAN+, PERSPEKTIVY RASSHIRENIYA ASSORTIMENTA XIM. REAKTIVOV DLYA OBESPECH. POTRE+
作者:KOCHETKOVA I. V.、 BIRYUKOVA D. A.、 KELAREV V. I.、 IVANENKO O. E.、 KARAXAN+