Monsanto Company

Jordan J Bloomfield

Dennis C Owsley

Compounds represented by the structural formulae ##STR1## wherein n is an integer 0 or 1; A, B and C each independently represent hydrogen or alkyl having from 1 to 3 carbon atoms, provided that when n is 0 at least one of A, B or C cannot be hydrogen; R represents hydrogen or an alkyl having from 1 to 6 carbon atoms; D and E each independently represent hydrogen or alkyl having from 1 to 6 carbon atoms, provided that the sum of the carbon atoms in D and E does not exceed 6, provided that, in the bicyclo compounds, at least one of A, B, C, D or E must be an alkyl; m is an integer 1 through 8; F and G represent hydrogen or alkyl having from 1 to 3 carbon atoms; X represents ##STR2## WHEREIN P IS AN INTEGER 0 THROUGH 2 AND I and J each independently represent hydrogen or methyl, provided that if p is 0 then m must be greater than 2; provided that the sum of the carbon and oxygen atoms in the compound is no greater than 23, are useful as fragrances or as components in fragrance compositions. These compounds have very pleasant, strong and long-lasting aromas. Novel compounds are also disclosed.

Polycyclic alcohol perfume compositions

A method is provided for controlling the para:ortho isomer distribution in nitrochlorobenzene product mixtures by the vapor phase nitration of chlorobenzene in the presence of a molecular sieve catalyst having a relatively small pore size ranging from about 5 A to about 10 A.

Gas phase nitration of chlorobenzene

A photochemical reaction system is provided in which a single polychromatic light source is used to simultaneously irradiate a plurality of photochemical reactions with different regions of the spectrum. In this system, the reactions are carried out in separate but adjacent chambers which are accessible to a single polychromatic light source and positioned in series so that each reaction provides a filter for the next adjacent reaction more remote from the light source.

Method of simultaneously carrying out plurality of photochemical

Relatively low molecular weight primary alcohols are coupled to form relatively higher molecular weight vicinal glycols in which a trialkylsilyl protecting group is employed on the hydroxyl position of said low molecular weight primary alcohol during said coupling reaction.

Synthesis of vicinal glycols

Compounds represented by the structural formulae ##STR1## wherein n is an integer 0 or 1; A, B and C each independently represent hydrogen or alkyl having from 1 to 3 carbon atoms, provided that when n is 0 at least one of A, B or C cannot be hydrogen; D and E each independently represent hydrogen, alkyl having from 1 to 6 carbon atoms, provided that the sum of the carbon atoms in D and E does not exceed 6, alkoxy having from 1 to 5 carbon atoms or ##STR2## wherein R represents alkyl having from 1 to 6 carbon atoms or aryl, provided that if either D or E is alkoxy or ##STR3## then the other substitutent D or E must be hydrogen; m is an integer 1 through 8; F and G represent hydrogen or alkyl having from 1 to 3 carbon atoms; X represents ##STR4## WHEREIN P IS AN INTEGER 0 THROUGH 2 AND I and J each independently represent hydrogen or methyl, provided that if p is 0 then m must be greater than 2; provided that the sum of the carbon and oxygen atoms in the compound is no greater than 23, are useful as fragrances or as components in fragrance compositions. These compounds have very pleasant, strong and long-lasting aromas. Novel compounds are also disclosed.

Aroma chemicals

Effective plant growth regulation is obtained by the application of 3-thiabicyclo(3.2.0)heptane-6,7-dicarboxylic anhydride 3,3-dioxide to plants.

Growing community of inventors

St. Louis, MO, United States of America

Jordan J Bloomfield