Polyethylene Glycol Mediated Kinetic Study of Nitro Decarboxylation of α,β-Unsaturated Acids by Blau’s Fe(III) Phen Complex

Table 1

Effect of different PEGs on Fe (III)-Phen triggered nitro Hunsdiecker reactions with unsaturated carboxylic acids.

Entry	Substrates	Without PEG		PEG-200		PEG-300		PEG-400		PEG-600		PEG-6000
		RT; (hr)	Yield; (%)	RT; (hr)	Yield; (%)	RT; (hr)	Yield; (%)	RT; (hr)	Yield; (%)	RT; (hr)	Yield; (%)	RT; (hr)	Yield; (%)
1	CA	26	55	2.50	78	1.75	86	1.75	82	1.75	80	3.0	75
2	4-ClCA	28	60	3.0	75	2.00	85	2.50	80	2.75	80	3.75	78
3	4-OMeCA	24	70	1.75	80	1.50	94	1.50	84	1.75	82	2.75	80
4	4-MeCA	24	60	2.0	80	1.50	90	1.75	84	2.0	80	2.75	78
5	4-NO2CA	28	55	3.0	70	2.00	82	2.75	78	3.0	75	4.0	65
6	4-OHCA	24	65	2.0	78	1.50	90	1.75	86	1.75	82	2.75	80
7	AA	26	63	2.0	76	1.50	92	1.75	88	2.0	86	2.75	82
8	CRA	28	65	3.0	75	2.00	85	2.75	80	3.0	78	4.0	70
9	3-PhCRA	26	70	2.75	76	1.50	90	1.50	85	2.0	78	2.75	72
10	2-ClCA	28	60	3.0	80	2.00	86	2.00	82	2.75	80	4.0	78
11	2-MeCA	25	55	2.0	78	1.50	88	1.50	82	1.75	80	2.75	75