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	Why elute with methanol in reverse SPE? Started by Dekka \| Last post by Dekka March 02, 2010, 08:20:11 AM	0 Replies 1873 Views	March 02, 2010, 08:20:11 AM by Dekka
	why ethers like ETBE have high octane number? Started by maciek2000 \| Last post by XIXTRUMP December 20, 2010, 01:04:07 PM	1 Replies 2454 Views	December 20, 2010, 01:04:07 PM by XIXTRUMP
	Why ethyl acetate shouldn't be used as a solvent in recrystallization of alcohol Started by Fla27 \| Last post by Borek July 07, 2014, 11:36:25 AM	3 Replies 5159 Views	July 07, 2014, 11:36:25 AM by Borek
	Why halide are para-orto directors? Started by xshadow \| Last post by xshadow January 16, 2018, 05:22:49 AM	0 Replies 1301 Views	January 16, 2018, 05:22:49 AM by xshadow
	Why has this simple caffeine derivative not been synthesized in any publication? Started by LookAroundYou \| Last post by rolnor June 18, 2023, 12:31:38 PM	10 Replies 1419 Views	June 18, 2023, 12:31:38 PM by rolnor
	Why having no vacant orbital can still accept nucleophilic attack? Started by lazipeter \| Last post by movies April 18, 2010, 04:03:37 AM	6 Replies 4028 Views	April 18, 2010, 04:03:37 AM by movies
	Why Hoffman over Zaitsev? Alkyation of geminal dihalide with NaNH2 in water. Started by slothoncoffee \| Last post by slothoncoffee June 21, 2018, 04:39:00 PM	2 Replies 1795 Views	June 21, 2018, 04:39:00 PM by slothoncoffee
	Why homologous/equivalent proton don't split each other's signal in proton NMR? Started by Ahmed Abdullah \| Last post by orgopete March 11, 2010, 10:35:34 PM	3 Replies 5059 Views	March 11, 2010, 10:35:34 PM by orgopete
	Why impurities hinder crystallisation. Started by foxthreefour \| Last post by wildfyr August 15, 2018, 10:52:06 AM	6 Replies 2179 Views	August 15, 2018, 10:52:06 AM by wildfyr
	Why in some reactions oxygen atom is enclosed in parenthesis ? Example: (O) Started by swaroop \| Last post by discodermolide May 11, 2014, 12:48:42 PM	3 Replies 2076 Views	May 11, 2014, 12:48:42 PM by discodermolide
	Why is -OCH3 not a good leaving group? Started by FailedPreMedStudent \| Last post by Babcock_Hall April 22, 2020, 04:21:29 PM	4 Replies 1282 Views	April 22, 2020, 04:21:29 PM by Babcock_Hall
	Why is -OR (alkoxy) group less activating than -OH (phenolic) group? Started by cookiecrumbzz \| Last post by cookiecrumbzz May 07, 2014, 02:20:17 AM	4 Replies 5184 Views	May 07, 2014, 02:20:17 AM by cookiecrumbzz
	why is 1,4-addition more stable than the 1,2-addition for conjugated compounds? Started by realdon \| Last post by Alpha-Omega January 07, 2008, 12:33:30 PM	2 Replies 4356 Views	January 07, 2008, 12:33:30 PM by Alpha-Omega
	Why is 1,4-benzoquinone considered an electrophile? Started by Sandra \| Last post by adam February 22, 2008, 04:17:50 AM	1 Replies 3159 Views	February 22, 2008, 04:17:50 AM by adam
	why is 15 molar acetic acid used as a solvent Started by uracowman \| Last post by thfmag August 06, 2009, 12:22:37 AM	2 Replies 3205 Views	August 06, 2009, 12:22:37 AM by thfmag

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