公开(公告)号：DE2256702A1

公开(公告)日：1974-05-22

申请号：DE2256702

申请日：1972-11-18

Applicant: BASF AG

Inventor： EILINGSFELD HEINZ DR ,  BAUR KARL GERHARD DR ,  PATSCH MANFRED DR ,  PLATZ ROLF DR ,  SCHECKER HANSGEORG DR ,  FISCHER MARTIN DR

IPC: C07C17/26 ,  C07C17/281 ,  C07C23/34 ,  C07C49/80

Abstract: Novel cpds. useful for pesticides and dye prodn of formula (I): (where R1, R2, R3 (opt. identical) = alkyl (pref. 1-4C) or H, and R4 = halogen (Br or Cl) are economically prepd. from cpds. (II) and (III) in presence of 75% H3PO4 and opt, using polymerisation-inhibitors, to increase yields.

公开(公告)号：DE2160378A1

公开(公告)日：1973-06-14

申请号：DE2160378

申请日：1971-12-06

Applicant: BASF AG

Inventor： ARMBRUST HERBERT ,  KILPPER GERHARD DR ,  QUADBECK-SEEGER HANS-JUERGEN D ,  STURM HANS-JUERGEN DR ,  KOEHLER WALDEMAR DR ,  SCHECKER HANSGEORG DR

IPC: C07C17/26 ,  C07C1/00 ,  C07C2/42 ,  C07C13/465 ,  C07C17/00 ,  C07C17/281 ,  C07C25/22 ,  C07C67/00 ,  C07C13/46

Abstract: 1403077 Dimerizing styrenes BADISCHE ANILIN- & SODA-FABRIK AG 5 Dec 1972 [6 Dec 1971] 55987/72 Addition to 1343445 Heading C5E 1-Alkyl-3-phenylindans are prepared by catalytically dimerizing a styrene optionally containing alkyl substituents in the presence of a surfactant and optionally a polymerization inhibitor. Suitable reaction conditions are as in the parent Specification 1,343,445. The surfactant may be anionic (e.g. carboxylates, sulphuric acid esters, alkyl sulphates, sulphated fatty acid monoglycerides or fatty acid alkylolamides, sulphated ethers, salts of lignin sulphonic acid, alkylsulphonates, alkaryl sulphonates, alkyl phosphates and salts of alkyl benzene phosphonic acids) cationic, e.g. (amine of quaternary ammonium salts, phosphonium salts and sulphonium salts) amphoteric (e.g. betaines, sulphobetaines and sulphatobetaines) or non-ionic, e.g. ethylene oxide adducts fatty acid monoglycerides, anhydrosorbitol fatty acid esters, fatty acid alkylolamides, saccharose fatty acid esters and reaction products of ethylene oxide and amines or amides). The surfactant may be used in amount 10- 5 to 10 -1 moles per mole styrene.