Isopropanol → HCID 14515742, compound

Participants

Reaction Steps

The acid chloride derivative (12) was produced in the same manner as in the synthesis of the above-mentioned 1-ethoxycarbonyl-3-ethyl-7-isoproylazulene (13) using 1-carboxy-3-ethyl-7-isopropylazulene (11) (1.21 g) as a starting material. Isopropanol was employed in place of the ethanol under the same reaction conditions and treatment as above to obtain the product (14) in a dark purple crystalline form, at a yield of 1.34 g (94.2%), having a melting point of 69 to 71° C.

Provenance & Evidence