Abstract:
A method for preparing N-(2,6-dimethylphenyl)-N-(methoxyacetyl)-DL- alanine alkyl ester, useful as a curing agent of plant disease, is presented. Thus, a mixt. contg. 34.8g N-(2'-propionitrile)-2,6- dimethyl aniline, 100ml toluene and 33g methoxy acetyl chloride was refluxed to give 44.2g N-methoxyacetyl-N-(2'propionitrile)-2,6- dimethyl aniline.
Abstract:
Title compds. of formula, HOP(O)(OH)CH2NHCH2R [(I), R= alkylphenyl, substd. phenyl, CN, CO2R, OR, SR, CO2H, halogen were prepd. and are useful as a plant=growth regulator and a herbcide. Thus, poly(dimethylsiloxyphosphate) was reacted with 1,3,5-tricyanomethyl- hexahydro-1,3,5-triazine in BF3-ether for 2hr at 45±5↿C to give 74% (I)(R=CN).
Abstract:
본 발명은 제초제로서 약효가 우수한 일반식(I)의 신규한 1, 2-디아릴-1-에탄올 유도체에 관한 것으로 이의 제조방법은 일반식(Ⅱ)의 아세틸 클로라이드 유도체와 일반식(Ⅲ)의 벤젠유도체를 프리델-크라프트의 아실화 반응으로 일반식(Ⅳ)의 케톤화합물을 제조하고, 이를 환원시켜 제조하는 것이다.
일반식(I)에 있어서, X와 Y는 각각 C 1 ∼C 4 의 알킬, 또는 할로겐이거나, -NO 2 , -CN 또는 -CF 3 로서 전자를 끄는 그룹 및 메톡시, 페녹시, 페닐, -OH 또는 -NH 2 로서 페닐기의 오르토, 메타 또는 파라 위치에 치환되며, 일반식(Ⅱ)에 있어서, R 1 은 수소, 브롬 또는 불소를 나타내며, R 2 는 수소 또는 불소를 나타내고 R 3 는 수소, 불소 또는 염소를 나타내며, 일반식(Ⅲ)에 있어서, R 4 는 메틸, 메톡시, 브롬, 불소, 페녹시 또는 파라-브로모페닐기를 나타내며, R 5 는 수소를 나타내고, 일반식(Ⅳ)에 있어서, R 1 , R 2 , 및 R 3 는 일반식(Ⅲ)에서와 동일하며, R 5 는 수소를 나타낸다.
Abstract:
A process for preparing 3-(4'-bromobiphyl-4-yl) tetralin-1one (formula IV) comprises (a) reacting a cpd. of formula (I) with ethylbromoacetate to form (II); (b) reacting a cpd. of formula (II) with trialkylsilane and trifluoracetate to form (III); (c) cyclizing a cpd. of formula (III) in the presence of organic solvent and polyphosphae to form (IV). (IV) is useful as an intermediate for preparing ratcide.
Abstract:
The method for cultivating bean sprouts with use of a germicide harmless to men com : (a) washing 10kg of beans and soaking in water for 24 hrs ; (b) putting 9.4kg soaked beans in 7 liter water containing 1.16g powdered germicide for 2 hrs ; (c) diluting a growth regulation agent with water and distributing to each cultivating vessel; (d) cultivating the beans in the vessel at 15-22≦̸C for 7 days. The germicide consists of 1, 4-dichloro-2, 5-methoxybenzene and methylbenzimidazole-2-il carbamate. The growth of sprouts remarkably improved.