2_4_三氯苯乙酮二醇类缩酮的合成研究.pdf
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31 4 Vol.31 No.4
2001 8 FINE CHEM ICAL INTERMEDIATS A g st 2001
2, 4,ω-
杨春龙, 蒋木庚
(南京农业大学应用化学系, 江苏 南京210095)
:以间二氯苯、氯乙酸及二醇类化合物为 料, 经酰氯化、酰基化及缩合反应合
成2, 4,ω-三氯苯乙酮二醇类缩酮化合物, 并着重研究了缩合反应中催化剂、脱水时间等对合
成收率的影响, 合成产物经红外光谱及质谱鉴定。
:2, 4,ω-三氯苯乙酮;二醇;缩酮
:TQ244.4 :A :1009-9212 (2001)04-0007-02
Synthesis of Glycol Ketals of 2, 4, ω-Trichloroacetophenone
Y AN G Chun -long , J IAN G M u -geng
(Department of Applied Chemistry, Nanjing Agric lt ral University, Nanjing 210095, China)
Abstract:Glycol ketals of 2, 4, ω-trichloroacetophenone were synthesized with the starting
materials of 1, 3-dichlorobenzene, chloroacetic acid, glycols etc.by acyl chloridation, acylation
and condensation reaction.Effects of catalysts and dehydrolysis time of condensation reaction on
synthetic yield w ere st died in partic lar.The synthetic prod cts were confirmed by infrared
spectrography and gas chromatography/mass spectrography .
Key words:2, 4,ω-trichloroacetophenone;glycol;ketal
2-(2, 4-)-2--1, 3-( R=CH3。
)、2-(2, 4-)-2--4-
1
-1, 3-()、2-(2, 4-
)-2--4--1, 3-( 1.1 仪器与试剂
)、 Waters :Waters 510 ,
[ 1, 2]
。 Lichrosorb Si-60、 25×0.46cm , 481
2, 4, ω-, 745B 。Bǜchi 011
4 , , 。HITACHI 260 -10 。SHI-
MADZU QP5050 , HP -5,
, 2, 4,ω- 40m×0.32mm , He 50ml/
、[3~5] , min。
, : 1, 2-,
Cl 。、,
ClCH COOH SOCl2 Cl COCH Cl 。
2 AlCl3 2
CH -(CH )-CH-R 1.2 合成步骤
2 2 n
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