133220-30-1Relevant articles and documents
A practical synthesis of indanofan via one-pot bromination of 3- chloroethylbenzene
Tanaka, Ken,Hosokawa, Akemi,Yoshida, Kenji
, p. 249 - 253 (1999)
A practical synthesis of Indanofan (1), a potent herbicide discovered by Mitsubishi Chemical Co. Ltd., was achieved starting from commercially available 3-chloroethylbenzene (2). 3-Chloro-α-bromostyrene (3), which was converted to 1-chloro-2-(3-chlorophenyl)prop-2-ene (5) in 2 steps, was synthesized via one-pot bromination of 2. 2-Ethylindane-1,3-dione (6) was synthesized from ethyl butyrate and ethyl phthalate (11) using NaOEt. The coupling reaction of 5 with 6 followed by oxidation with AcOOH afforded 1 in a high overall yield.
Epoxy compound (by machine translation)
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Paragraph 0073; 0077-0078, (2017/07/31)
[Problem] safe, efficient and economical, and high purity of the objective compound, epoxy compound production. (1) represented by the general formula [a], and, more a 300 molecular weight styrene compound, tungsten compound in the presence of the onium salts, hydrogen peroxide is reacted with, of the general formula (1) carbon - carbon double bond contained in the compound represented by the epoxy compound can be oxidized. (A is an electron withdrawing group having a benzene ring. R1 The, 1 - 20 carbon atoms of alkyl group which may have a substituent. )[Drawing] no (by machine translation)
Indan-1,3-dione derivative and herbicidal composition containing the same as active ingredient
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, (2008/06/13)
The present invention provides indan-1,3-dione derivatives, including derivatives represented by the following formula (I): STR1 wherein R1 represents a hydrogen atom or a lower alkyl group; R2 represents a group represented by STR2 wherein E represents a (substituted) phenyl group or a (substituted) pyridyl group; Y represents a hydroxyl group; and Z represents a halogen atom, a (substituted) alkylsulfonyloxy group or a (substituted) phenylsulfonyloxy group, or Y and Z are bonded to represent --O--; and A represents a (substituted) 1,3-butadienylene group or a (substituted) 1,3-azabutadienylene group, and a herbicidal composition containing the same as an active ingredient. The compound of the formula (I) shows high herbicidal activity against gramineous weeds, cyperaceous weeds, etc. but shows markedly low phytotoxicity against crops.