| 摘要 |
Preparation of sulphonium salts of naphthalene derivatives (II) R1 = H-, alkyl-, alicyclic-, aryl-, alkaryl or a heterocyclic substit. R2 = alkyl- X = anion of an organic or mineral acid also Preparation of sulphonium salts of naphthalene derivatives of general formula (IV) Z = methylene- or ethylene dotted line between C15 and C16 indicates single bond if Z is ethylene, and single or double bond if Z is methylene R3 = H or alkyl- R4 = H when R3 = H- or when C15 to C16 is double bond or when Z is ethylene or when R4 = H - in formula III R4 can also be = carboxamide-, carbalkoxy- or carbaralkoxy- of general formula R5 = alkoxy-, or aralkoxy in which alkyl- is C1-5 or acyloxy- of general formula R6 = C1-5 alkyl when R3 is a short alkyl- and Z = methylene and R4 =H-, or carboxamido, or carbalkoxy- or carbaralkoxy- of general formula -OC-R5 in which R5 is alkoxy-, aralkoxy-when R3 is alkyl-, and Z is a methylene group with a single bond between C15 and C16 Intermediates for the preparation of oestrogen and progestative steroids. |
