1. DCM wasnt available at that time and swim saw no reason not to use chloroform ..swim did NOT want to use ccl3....so the original question was asked==> did anyone see any problems using ccl3. if dcm was present it WOULD have been used. swim did not want to use ccl3 just to see how it would act in a performic or to try to change how the performic is done
2. nothing was trying to be invented...durring a period without DCM, swim saw no reason to not experiment with other possible options and didnt want to play with jellied DCM that gives DCM + azeotropes......==>whats better no rxn for the few days without DCM? or is it beter to run a rxn that involves a longer dripping time, for the few days without DCM?
3. an addition funnel when using DCM works perfectly as you stated but without the cooling caused by the boiling of DCM the addition of the performic takes much longer...it also took 24 hours with ccl3 but swim would guess his rxn was much smaller (140g iso)...swim has heard of an addition funnel by the way...(actually swim hooked 2 addition funnels up so when swim's nobody went to work, that nobody could resume the dripping by turning the second one on, so swims lazy ass could sleep without having to get up and fill the funnel again...the second funnel was covered with foil to reduce light absorption
4. desert?...swim said that lots is lost due to opening it (swim wasnt very clear)...a gallon of DCM at room temp (70F)when opened releases pressure..thats DCM escaping...i guess the word "lots" is relative because if the gallon was divided into smaller containers some would be saved (OK your right, a large percentage isnt lost)...swim would guess at least 5% (maybe more )is lost by the time the bottle is empty...lots meaning===>the DCM lost due to evap from opening bottle is allot more than say the amount of solvent lost when opening most other solvents.
baalchemist: swim wasnt or isnt trying to piss you off...he was only asking others for their opinion on a temporary problem....
[it may not be all bad either, perhaps a better yeild could be obtained because much of the heat lossed per unit time in the rxn when using DCM is caused by boiling but the heat lost per unit time in the ccl3 rxn is mainly caused by the rxn's thermal contact with its surronding...so if both types (DCM and CCl3) are held at 40c, the chloroform one would have an internal energy that is equal but would have this energy for a longer period..maybe it is good/maybe-not..the same thing would happen with DCM if the temp wasnt allowed to reach reflux.......swim has no idea if this would be better, worse, or make no difference at all]
this ^ was by no means his purpose for using chloroform actually swim didnt want to use it but the benfits outweighed the consequences which was about 10 hours extra dripping
like swim said, he was only asking for opinions..he wasnt trying to invent any wheel..sorry if swim offended you baalchemsit...it wasnt his objective
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