Patents by Inventor Claudio Giordano

Claudio Giordano has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing the 2',4'-difluoro-4-hydroxy-(1,1'-diphenyl)-3-carboxylic acid
    Patent number: 4486599
    Abstract: Process for carboxylating 2',4'-difluoro-4-hydroxy-1,1'-diphenyl or a derivative thereof with an alkaline alkylcarbonate at atmospheric pressure to afford 2',4'-difluoro-4-hydroxy-(1,1'-diphenyl)-3-carboxylic acid.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: December 4, 1984
    Assignee: Zambon S.p.A.
    Inventors: Mariano Meneghin, Piero Piccinelli, Claudio Giordano
  • Process for preparing esters of 2-(6'methoxy-2'naphtyl)-propionic acid via rearrangement of new ketals of 2-halo-1-(6'-methoxy-2'-naphtyl)-propan-1-one and new esters of 2-(5'-bromo-6'-methoxy-2'-naphtyl)-propionic acid thus prepared
    Patent number: 4414405
    Abstract: Process for preparing esters of 2-(6'-methoxy-2'-naphtyl)-propionic acid via rearrangement of new ketals of 2-halo-1-(6'-methoxy-2'-naphtyl)-propan-1-one in the presence of a Lewis acid.The esters thus obtained are useful as intermediate products for preparing Naproxen.The process involves the preparation of the following new compounds:ketals of 2-halo-1-(6'-methoxy-2'-naphtyl)-propan-1-oneesters of 2-(5'-bromo-6'-methoxy-2'-naphtyl)-propionic acid1-(5'-bromo-6'-methoxy-2'-naphtyl)-propan-1-one2-halo-(5'-bromo-6'-methoxy-2'-naphtyl)-propan-1-one.
    Type: Grant
    Filed: February 20, 1981
    Date of Patent: November 8, 1983
    Assignee: Blaschim S.p.A.
    Inventors: Claudio Giordano, Aldo Belli, Fulvio Uggeri, Giovanni Villa
  • Process for the preparation of 4-[2-(dimethylamino)-ethoxy]2-methyl-5-(1-methylethyl)-phenol esters and their salts
    Patent number: 4336396
    Abstract: This invention relates to a process for the preparation of 4-[2-(dimethylamino)-ethoxy]-2-methyl-5-(1-methylethyl)-phenol esters (I) and their salts with organic and inorganic acids comprising the reaction of thymol with a salt of an 1-halo-dimethylaminoethane to obtain ethylamine-N,N-dimethyl-2-(thymyloxy) (II), the subsequent reaction of (II) with an acylating agent according to the Friedel and Kraft reaction to obtain 4-[2-(dimethylamino)-ethoxy]-2-methyl-5-(1-methylethyl)-1-acyl-benzene (III) and the oxidation of (III) to obtain the products (I) which, if desired, may be transformed in their salts with organic or inorganic acids.This process allows to obtain the products (I) in high quality and quantity without isolating any intermediate product.
    Type: Grant
    Filed: December 4, 1980
    Date of Patent: June 22, 1982
    Assignee: Blasinachim S.p.A.
    Inventors: Claudio Giordano, Aldo Belli
  • Process for preparing esters of arylacetic acids from alpha-halo-alkylarylketones
    Patent number: 4328356
    Abstract: Esters of arylacetic acids, more particularly lower alcohol esters of arylacetic acids, including those substituted on the methylene group, are prepared by rearrangement of the corresponding alpha-halo-alkylarylketones with Ag compounds in lower alcohols and in an acid medium. From the alkyl esters so prepared, their respective free acids can be obtained, if desired, by various means such as hydrolysis or the shift with mineral acids of the alkaline salts prepared by reaction with alkali, etc.
    Type: Grant
    Filed: February 15, 1980
    Date of Patent: May 4, 1982
    Assignee: Montedison S.p.A.
    Inventors: Claudio Giordano, Francesco Casagrande
  • Process for preparing alpha-naphthol esters of aliphatic carboxylic acids
    Patent number: 4244881
    Abstract: Alpha-naphthol esters of aliphatic carboxylic acids are prepared by oxidation of naphthalene in the presence of cobalt compounds.
    Type: Grant
    Filed: March 28, 1979
    Date of Patent: January 13, 1981
    Assignee: Montedison S.p.A.
    Inventors: Claudio Giordano, Aldo Belli, Francesco Minisci
  • Methods of combatting nematodes using certain derivatives of 1,3,5-oxathiazine
    Patent number: 4035496
    Abstract: Compositions comprising 1,3,5-oxathiazine derivatives and which are highly effective against nematodes but exhibit low toxicity for warm-blooded animals are disclosed.
    Type: Grant
    Filed: July 18, 1975
    Date of Patent: July 12, 1977
    Assignee: Montedison Fibre S.p.A.
    Inventors: Claudio Giordano, Mario Ferraris, Elena Barsuglia