Post 391475 (https://www.thevespiary.org/talk/index.php?topic=12187.msg39147500#msg39147500)
(pHarmacist: "One More piperonal patent, High-yielding", Novel Discourse)https://www.thevespiary.org/rhodium/Rhodium/chemistry/phenylacetic.html (https://www.thevespiary.org/rhodium/Rhodium/chemistry/phenylacetic.html)
(unsubstituted)Patent US4590295 (http://l2.espacenet.com/dips/viewer?PN=US4590295&CY=gb&LG=en&DB=EPD)
for 4-OH-PAA (from phenol in one pot)Patent US4198526 (http://l2.espacenet.com/dips/viewer?PN=US4198526&CY=gb&LG=en&DB=EPD)
https://www.thevespiary.org/rhodium/Rhodium/chemistry/pemoline.html (https://www.thevespiary.org/rhodium/Rhodium/chemistry/pemoline.html)
or Refs within.Patent EP1229031 (http://l2.espacenet.com/dips/viewer?PN=EP1229031&CY=gb&LG=en&DB=EPD)
Post 391475 (https://www.thevespiary.org/talk/index.php?topic=12187.msg39147500#msg39147500)
(pHarmacist: "One More piperonal patent, High-yielding", Novel Discourse)Patent US5354897 (http://l2.espacenet.com/dips/viewer?PN=US5354897&CY=gb&LG=en&DB=EPD)
Patent US4339602 (http://l2.espacenet.com/dips/viewer?PN=US4339602&CY=gb&LG=en&DB=EPD)
Patent US4165341 (http://l2.espacenet.com/dips/viewer?PN=US4165341&CY=gb&LG=en&DB=EPD)
Post 225608 (https://www.thevespiary.org/talk/index.php?topic=11418.msg22560800#msg22560800)
(foxy2: "Re: 4-Methylaminorex Synth w/o CNBr", Novel Discourse)Patent DE10029413 (http://l2.espacenet.com/dips/viewer?PN=DE10029413&CY=gb&LG=en&DB=EPD)
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Post 225606 (https://www.thevespiary.org/talk/index.php?topic=11418.msg22560600#msg22560600)
(foxy2: "Re: 4-Methylaminorex Synth w/o CNBr", Novel Discourse)Post 225604 (https://www.thevespiary.org/talk/index.php?topic=11418.msg22560400#msg22560400)
(foxy2: "Re: 4-Methylaminorex Synth w/o CNBr", Novel Discourse)Post 427038 (https://www.thevespiary.org/talk/index.php?topic=11870.msg42703800#msg42703800)
(foxy2: "Preparation of Glyoxylic acid", Novel Discourse)Organic Syntheses, CV 3, 538 (http://www.orgsyn.org/orgsyn/prep.asp?prep=cv3p0538)
(http://www.orgsyn.org/orgsyn/prep.asp?prep=cv3p0538)Organic Syntheses, CV 3, 326 (http://www.orgsyn.org/orgsyn/prep.asp?prep=cv3p0326)
(http://www.orgsyn.org/orgsyn/prep.asp?prep=cv3p0326)Patent US2151517 (http://l2.espacenet.com/dips/viewer?PN=US2151517&CY=gb&LG=en&DB=EPD)
https://www.thevespiary.org/rhodium/Rhodium/pdf/nitro2bromide2acid.pdf (https://www.thevespiary.org/rhodium/Rhodium/pdf/nitro2bromide2acid.pdf)
)