Methoxy-3- phenylsulfonyl

Methoxy-phenylsulfonyl)-l-[(4-methyl-piperiizino)-acctyl]-E10b2. 431 (F S-Ar)... [Pg.782]

The acylation of methoxy(phenylsulfonyl)methyllithium 340 has only been performed with an ester to provide in 86% yield the corresponding / -kcto sulfone used for the synthesis of rapamacin517. [Pg.198]

Methan Diazo-[2(bzw.3- bzw,4)-methoxy-phenylsulfonyl]- E14b, 1300 (aus N-NO —amid) Thiobenzhydroximsaure 4-Nitro- -S-methylester E5, 1280f. [Pg.472]

Cyclopentan 3-Methyl-l-oxo-2-phenylsulfonyl- E19b, 1269 [(Carben —C,H-Insertion (intra)] Cyclopropen l,2-Dimethyl-3-(4-methoxy-phenylsulfonyl)- E19b, 1723 (Carben + In)... [Pg.1020]

Methoxy(phenylthio)methane and methoxy(phenylsulfonyl)methane are useful formyl anion equivalents for one-carbon homologation. For instance, addition of methoxy(phenylthio)methyllithium to ketones, followed by rearrangement of the adduct, provides a new method for the preparation of a-(phe-nylthio) aldehydes (equation 39). The reanangement is stereospecilic. This method has been used for the total synthesis of annelated furans such as (-)-)-euryfiiran, butenolides such as isodenninin and con-fertifolin and spirocyclic tetrahydiofurans and butenolides. ... [Pg.570]

Methoxy-4-(methoxy-carbonyl)-1 -phenylsulfonyl (1) CICOCOCI, AICI3 (2) McOET 75 [9]... [Pg.137]

The reaction of 3-methoxy-1,2,4-triazine 1-oxide 20 with the carbanion generated from chloromethyl phenyl sulfone proceeds as the vicarious nucleophilic substitution (VNS) of hydrogen (Scheme 1, path B) via addition of the carbanion at position 5 of the heterocycle. Following base-induced elimination of HCl and protonation, 3-methoxy-5-phenylsulfonyl-1,2,4-triazine 4-oxides 65 result (88LA627). [Pg.277]

Unlike quinoline A -oxide, which yields a mixture of quinolin-2(l//)-one and 4-(4-quinolyl)quinolin-2(l//)-one, 7-methoxy-4-phenylquinoline A -oxide (47) with phenylsulfonyl chloride and dimcthylsulfoxonium metliylide affords the l//-l-benzazepine 48 (a rare example of an 7V-unsubstituted l//-l-benzazepine), together with small amounts of the dimeric 1//-1-benzazepine 49 and 2,2-bis(7-methoxy-4-pheny]-2-quinolyl) (8% mp 276 C).166... [Pg.251]

Phenylsulfonyl-2-oxo-l-(4-methoxy-phenyl)- 633 3-Phenylsulfonyl-2-oxo-1 -phenyl- 633 2-Phenylthio-2-methyl- 500 2-Piperidino-l-(4-methyl-phenylthio)- 500... [Pg.917]

The synthesis of different substituted finans by cyclization of 4-pentynones using potassium tert-butoxide in DMF was reported <96TL3387>. Dihydrofuran 32 can be prepared by a destannylative acylation of l-[(2-methoxyethoxy)methoxy]-2-(phenylsulfonyl)-2-(tributylstannyl)-cyclopropane. Treatment of 32 with BFj-EtjO yields 3-acyUurans via an intramolecular Prins-type reaction of the resulting oxonium ion intermediate <96TL4585>. [Pg.128]

Of particular interest are cases in which substituents are present in ortho positions to the reacting methyl group. Apart from o-chloro-substituted derivatives, those with methoxy, carbonamido, sulfonamido, and phenylsulfonyl groups have been reported to undergo reaction.68 The 2-(3-chloro-4 methyIphenyl)-5-methoxybenzotriazole (163) has been found to be particularly reactive, yielding, with Schiff s base 98, the stilbene 164.54... [Pg.229]

Methoxy-5-nitropyridine (59) with l-phenyl-3-phenylsulfonylpropane (60) gave 2-methyl-6-phenyl-8-phenylsulfonyl-l,5-naphthyridine (61) (reactants,... [Pg.9]

Ebenso fiihrt die Umsetzung von Diazomethan mit (Bis-[phenylsulfonyl]-methyl)-diphe-nyl-phosphanoxid zu (Bis-[phenylsulfonyl]-methylen)-diphenyl-methoxy-phosphoran460 ... [Pg.75]

Arylazo-dipheny 1-methoxy- E14a/2, 132 (Hydrazen/Br2/R —OH) Aryl-diazo- E14b, 1021 (aus Sulfonyl-hydrazon) E19b, 877 (Blitz-Vakuum-Pyrolyse von) Aryl-dinitro- IV/la, 765 Ary 1-methyl thio-phenylsulfonyl-E14a/3, 408 (H SCH.,) Aryl-nitro- E16d, 156 (COOH N02)... [Pg.47]

Propen 1-(4-Chlor-phenylsulfonyl)-l-methoxy-2-methyl- XIII/5,... [Pg.882]

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