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(1)

13

"o,゛.:

SyntheseofMtro-compoundsby ofAcylamino-compounds.

Oxidation

l

(II)L‐

11,(.“」’11

geveralEfICctsontheYieldofMtro-com】Ooundsbythen、

OxidationofACetylamino-PompoundBwithHyClrOSenreroxide・

ByTakuoKosugeD

Thepresentauthorlfbundthatace- AsthelargeamountsofhydrogenP

tylaminobenzenesulfbnamidewasoXidi-Peroxidewasused,theyieldofdinitro‐

zedtonitrObenzenesulfbnamide幻 benzeneincreasetLButtherateof

$ ̄

InthecaseofacetyiaminOとhitfOljenご]nCfeasedIhjiniS鴎dWitMjrtherincrease

zene,thesamereactionwasalsoeHとctedinquantityofhyrdrogenperoxide・Thus toproducep-nitrobenzeneintheyielditisdesirabletodeterminetheoptimal Mぢ1.3妬リベヤ:イハルい~■!(Ⅲu~,Iquantiけいtobeerhi91UyiediineaChreaction

mSeveralefTeCts1uPoMhereationwerefromthee伽。m随lPoiiitbMeW・

examinedasfbllows.ルノーwLiThe妃息mlltsobtai庇dfi℃mtiieexperi‐

1-Ⅱ)TheefYbct}iofthe"quantityofmentsareshowninthefblloingfigureL

hydrogenpefoxide,i”j'い-い~、:_圷一J-u-。

トィーオ『ミパ,い'ぬ:、w・~ハiI::鮴--㎡Fig・rirヘドシルいつLい~いい…い

qb。

’@i/'

゛、」Cl

7J。

)‘

I’

卯){

・UV-b

トーーーーーDiiljtr0bcmZcne I1F-'ヰーーIINitranililie.

、OL.’

..!,‘●ぷl+」Ⅱ

g↑

20CCI 40CC1---

h鰈--》HydTngcnpe「oXlde

I-y1バト..。,-`、・・・

2)Theeflbctofthequantitylof

glacialaceticacidassolVent・

Theincreaseintheamountofthe

solventgaverisetodecreaseintheyield ofthenitro-compound・IThiswillbe duetothefhctthattheConcentratiOniOf-

G0cc-I

hydrogenperoxidewasdilutedbyadding

glacialaceticacid.Therfbreiitwillbe desirabletoemploytheminimUnquantity ofthesolventenoughtddiSolvethe materials._TheresultsareShdwninthe fOllowingfigurelL ,I

1)FacultyofPharmacy,KanazawaUifviersity、

2)Thisannualreport,page

J

(2)

14

Fig.11

DIllitl・obcnzcnt.

Mbra11Minど

I□

..,u-I-季・'.。

g牛1

口● r・

ワ-,}

→Ulacialacctlcacid ̄

examinethevariationiptheyieldwhen onlMthei)volum1oflW伽genperoxide

wasvaried..:、 漠’

Fromthe`,experiments,thefblioWing pointsweremadecle鞭へTheyieldof nitro-compoundwasindipendentMpon thevariationofthevolumofllydrogen peroxideemploye。.Therfbreitseems probablethattheresultsobtainedftom theeXperiments(1)isduetothecolr centrationofhydrogenperoxideThe resultareshowninthefbllowingfigure

lll.

「3)Thevariationintheyieldwhen thevolumofhD/泊lrogenperoxidewas varied,aliowingthe:concetrationunchanF geCLJ…~,Tmい…

Ilromtheexperimants(2)itiscon‐

cludedthattheconcentrationofhydro‐

genperoxidemaygivethemainefYbct upontheyieldofnitrocompound・Thefe- fbre,itisdesirabletobeclarifiedthat theresultsobtainedfromtheexperiments (1)aredueeithertothequantityorto theconcentrationofhydrogenperoxide.

‐Theexperimentswerecarriedoutto

riglll

--Dinitroben月eIle ----Nitraniline- l

2 ’

G1

1 ヘ 、

,!.

。 ̄~-----

卸81

----.,.

50100150

->HydrogenperoxideandGlaclalaLetlKacid

(3)

15

■4)ThceflをctofreactiOn-timc.:

一LTheyieldofnitro-compoundsare inHuencedけthereactiontimenThUs,

whenthereactiOntimewasilengthened,

thebetteryieldresulted.咄However,the reactionra従diminishedwithtime・That

isprobablydUetothedecreaseof concentrationoftheoxidizingagent beccaDSeOftheself-decompOsitionof hydrogenperoXide.(

へTheresultsareshowninthBfUlo-

wingfigureIVoJL:(

Fig.1V

~DinitrObenzene

---Nitraliiline」

一》率一二|}’’’一一.●恒●●●..

,P~0β

、、

ト」」,

std

 ̄,Time

5)TheefYbctofreactiontempera‐

ture・

WhenthetemperaturebelowlOOol

WaSapp1ied9thCyieldbecamebetter,

o'010c・D・

asthetemperat噸becomehigher,But aboveloootheyielddecreasedonthe

COntraly61tseemprObablethathydroと genPeroxidewasrapidlydecomposedat Jtii6Thighertemperature,overlooo・

TheresultsareshOwninthCfbllow‐

ing6gurqV.…」Ⅱ

FigV

、0

5;

,1

$ l 、

、 1 、

2 DillitrobCllzcne

Pr

NitI・al1ilimie}

PⅡ い'

、. 、

、、

ー、’ 、ボ

91

100°C 120°C 60°C

ポーウTどmPcmtUre

(4)

16

~6)TheefYbctSofldeCOmPosing;centrationof:hyd睡olgenjp伽xide℃annot agentsDfl妙drogennperiDxidenⅡけ~bemaintainedaMhe・optimaLconCenty‐

iLLASくit/iadearthatefTectivedeとatiOnintheStartingpointiDfthereactibnj

j~lFromtheconsidmatibnoftlie誼eSu-

composingagentfbrJhydrOgenperと

o鐡dciSlaUeterrenttothepresentrea-1ts,itresultSthatinorderIioobtainthe ction,sodiumacetate(the/bomparatiV‘lybeStyield〃loilgeMeactioiMime,,higher weakdecomposingagentofhydrogenreactiontemperatureandhigherconcent- peroxide)wastried、Whenthesodiumjfationofhydrogenperoxideareneces-

acetatewasadded,theyieldremarkablysary..11r decreased.Anditwillbedesirableto S血mmaryl

usethestabilizingagentfbrMrqgen llnthepreparationofp+dinitmben‐

peroxide.…,zenelffomp-nittoacetanilideltheeHects BasedoMheresUltsobtalnedbY-OfqUantityofhydrogenpero太itle,ofthe

.!Ⅱ.--.

thepreceedingexperiments,itmayibequantityofglaciaLlaCeticacidiassolvent, ...-I- aducedthatitisdesirabletomainitainoftheqUantityTdfthehydrogenperoxide theconcentrationofhydrogenpero琴ide-ofthesameconcentration,ofthereaction

mg…。…i、、…M.P…纐畷P識i篁二:淫!;:11:ilm蓋伽

theoxidatiqJ1efYもctively・I

Anditwasboficludedthatinorder Fromtheoutsetofthereaction,

hydrogenperoxidewasaddedinpprtIons-tqobtainthebe手yiel上Ij-Ibingerreaction

K・ir

tothereactionsolution、 However,time,higherreactiQxLtemperatureand unexpectedlytheyielddecreased・Thathigherconcentrationofhydrogenpero‐

maMbeihd鵬ltpbthIeiijact,thatthe,con-xide:arene嚥ssaWよいW,,…!「iい

’‘jザT:Ywf-j'・ノi1il《(い;ヘム-11];…『「,TJI

1wP1ゴルー:■…:m1FM1軍期erimenta山い,~トー!』ん此M

-JLip△diniffob8ii26neWas

■EF甑CTOFTHEQUANTITYandCoolingl

OFHYDROGENPEROXIDEi/AfiltfatedandWashedwithMfOCC・bF3096

0り゛●

mixtureof5g、ofp-acetylaminonitro‐1iyar66hlbfl6a6id6P色Din職6beiiZeneWas‘

benzen,6OCC・ofglacialaceticacidandpmducedintheyieldsshowninthe acc・of3o妬hydrogenperoxide(a;20,W611owingtable、

4o’6OCC.)washeatedonthewaterbathThesolutionofp-nitraniline,obta‐

AfterheatingShrs・andcooling,theinedbythehydrolizingtheunreacted precipitatewasfiltratedamlp-acetyl-acetylaminonitrObenzene,wasccincentra-

aminonitrobenzeneintheresiduewasted,andneutralizedwithsodiUInhydro‐

hydrolizedMth:25cc・of3o妬hydro‐xide・lP-Nitranilinewasproducedin chloricacidAfterboilingfbrlhourtheyieldofthefbllowingtable.

Tablel、‘

I〕-Dinitrobenzene,P-Nitraniline

γ1.659. 1.189.

2.389.’---q539.’・

-2.69.-----0.279.- ̄

:腓H

QUAN‐TITYOFGLACIALACETICACID

IIydroegenperoxideい)

20cc.(

40cc.}

60cc、一一

p。0.0,‐-℃

一・いd

TH1EEFFECTOFTHE

(5)

17

ASSOLVENT》:AmixtureOfSg、cf P岸aCetaminomtitrobenzezej4ocC・of30妬 hydrbgenperoXideanda「cc・Ofglacial

acetiCacidwasheatedOnthewaterbath

for5hrs、Andp-Dinitrobenzeneand p-nit魁、ilinewereproducedintheyield showninthefbllowingtableILfL-

Tablell

.|;

~GIacialaceticacid(a)p-Dinitrobenzenep-Nitraniline

30cc.0.539. 2.659. 0.229.

60cc、 2.389.

90cc.2.389.- 0579.l

THEVARIATIONINTHE妬hydrogenperoxideandglacialacetic YIELDWH,ENTHEVOLUMOFacidintheratioof4:6,andwasheated HYDROGENPEROXIDEWASVA‐onthewaterbathfbr5hrs・ Andp-

RIEDALLOWINGTHECONCENT-dinitrobenzeneandp-nitranilinewere

RATIONUNCHANGED:Amixture producedintheyieldshowninthe of5gJofacetylaminonitrobenzenewas fOllowingtablelll・

dissolvedinacc・ofthemixtureof3o

Tablelll ThemixtureoFglacial

aceticacidandhydrogenp-Dinitrobenzenep-Nitraniline peroxide(a)

50cc、 2.49. 0.729.

100cc、 2.389. 0.539.

150cc、 2.439. 0.429.

THEEFFECTOFTHEREAC-acidwasheatedonthewaterbathfbr

TIONTIME:Amixtureof5g・Ofahours・p-Dinitrobenzeneandp-nitro- p~nitroacetanilide,zocc・of30%hydro-anilinewereproducedintheyieldshown genPeroxideand6occ・ofglacialacetic inthefO11owingtablelV・

TablelV

Reactiontime(a)p-Dinitrobenzenep-Nitraniline、

3hrs、 1.489. 1.499.

5hrs、 1.659. 1.189.

7hrs、 1.979. 0.999.

9hrs、 1.999. 0.759.

THEEFFECTOFREACTIONaceticacidwasheatedatafbr5hrs・

TEMPERATURE:AmixtureofSg・p-Dinitrobenzeneandp-nitrani,inewere ofp-nitroacetanilide’4OCC・of30%producedintheyieldshowninthe hydrogenPeroxideand6occ・ofglacialfbllowingtableV・

TableV

ReactiontemPerature(a)p-Dinitrobenzenep-Nitraniline

60o 0.389. 2.899.

100. 2.389. 0.539.

120。 2.029.

(6)

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